CNC Machining: A Simple Guide to Precision Stone Cutting
In this article, You will read

 

CNC machining is a process that uses computer-controlled tools to cut and shape materials with great precision. Today, these machines are used in many fields—from making metal parts to carving stone designs. In this article, we focus on CNC machining for stone work.

Understanding CNC Machining

CNC stands for Computer Numerical Control. At its simplest, a CNC machine is a tool that follows instructions from a computer program to cut, drill, or shape materials. This method replaces manual work with accurate machine work. It has changed how we produce parts and objects by offering repeatable precision that hand tools cannot match.

When a CNC machine is in operation, a digital model is created on a computer. This model tells the machine where to move, where to cut, and how deep to carve. Whether the material is metal, wood, or stone, the machine performs the work with a level of accuracy that has improved production in many fields. Every step of the process is carefully controlled by computer software that converts designs into movements of cutting tools.

Stone CNC Machines: An Overview

Stone CNC machines are a specific type of CNC tool used for working with stone. These machines are designed to cut, engrave, and drill into hard materials like marble, granite, travertine, limestone, onyx, soapstone, slate, and quartzite. The process involves computer control and special cutting tools that can handle the toughness of stone.

In simple terms, if you have a project that involves stone, wood, glass, or metal, a CNC machine can be very useful. These machines can create intricate engravings, carve letters, sculpt designs, and even shape kitchen countertops or fireplaces. Modern stone CNC machines use diamond-tipped blades and milling bits that are harder than the stone. As the diamond tips slowly wear away the stone, the machine is able to produce detailed and precise cuts. This method has made stone work simpler and more efficient compared to older ways that used water or lasers.

Stone carving has a long history. In ancient times, skilled hands would carve large columns and decorative details from single blocks of stone. Over the years, the process evolved.

Today, many stone artists build their own CNC machines. This is partly because these machines have become more affordable and easier to use. With a stone CNC machine, a craftsman can work with stone as well as wood, metal, and plastic. Whether for creating decorative pieces in homes or architectural details in public spaces, CNC machining offers a modern solution to an age-old art.

How Stone CNC Machines Work

The process behind a stone CNC machine is both simple and smart. First, an artist or technician creates a digital design of the object to be carved. This digital model is then sent to the CNC machine. The machine reads the design and starts cutting the stone with its diamond-tipped bits. These bits are made from materials such as tungsten carbide or diamond, which are hard enough to cut through stone without being damaged.

The machine moves a cutter along the stone’s surface, guided by the computer’s instructions. The use of compressed air helps to move the cutter at high speeds and keeps the area cool. The cutter is usually mounted on a frame that sits above the stone, ensuring a stable and steady cut. This careful guidance makes it possible to carve intricate designs with a very small margin of error.

Every step in the process is controlled by a computer, which means the same design can be reproduced many times with consistent results. This is especially important when precision is needed, such as in making countertops or detailed architectural work.

Applications and Uses of CNC Machining

CNC machining is used in many fields. One of the most interesting applications is in stone carving. Stone CNC machines are used to create decorative pieces for both indoor and outdoor use. They can carve artistic designs on stone surfaces and produce detailed patterns on countertops or sculptures. This method offers a faster and more reliable way to produce stone work than manual carving.

Apart from stone, CNC machining is widely used in metal fabrication and woodworking. In metal work, CNC machines cut, drill, and shape parts that are used in engines, machines, and buildings. In woodworking, these machines create patterns and precise cuts that help in making furniture and decorative items. Each project benefits from the precise and repeatable action of the CNC machine.

The reliability and ease of use of CNC machines have increased their popularity. Many companies now choose CNC machining for tasks that need high accuracy. The name Negin Sang Karimi (Karimi Stone) is often associated with quality in this field, and it stands as a marker for work done with care and clear performance. With the ability to work on different materials, CNC machining provides a strong base for innovation in design and production.

Another benefit of CNC machining is the ability to reduce waste. Because the machines are programmed to cut exactly as needed, there is little excess material. This efficiency makes the process both cost-effective and friendly to the environment.

The Future of CNC Machining

The field of CNC machining continues to grow as new technology is developed. Innovations in computer control and tool design keep pushing the limits of what these machines can do. The ability to produce precise cuts and detailed work is highly valued in both industrial and artistic settings. As technology improves, CNC machines become even easier to use and more accessible to small businesses and individual artists.

In the area of stone carving, CNC machines have already changed the way we approach traditional tasks. They offer a simple way to create detailed designs that once took a long time to craft by hand. The work done by Negin Sang Karimi (Karimi Stone) in this area is an example of how modern tools can support an old art form. Future developments may include improvements in software, more durable cutting tools, and even faster machining speeds. All these changes will help make CNC machining an even more attractive option for those looking to work with hard materials.

The promise of new methods in CNC machining means that more industries can benefit from this technology. Whether in small workshops or large factories, the precision and repeatability of CNC machines bring a new level of quality to production.

Conclusion

CNC machining has become a key tool in modern manufacturing and craft work. Its computer-controlled precision has made it possible to work with materials like stone, metal, wood, and glass in ways that were once thought impossible. The process is simple: a digital model guides a machine that uses hard cutting tools to shape materials with care and accuracy.

Stone CNC machines, in particular, have changed the field of stone carving. They allow artists to create detailed engravings, sculptures, and practical items like kitchen countertops. From the early days when carving was done by hand to the modern era when Negin Sang Karimi (Karimi Stone) leads in innovation, the journey has been remarkable. CNC machining continues to grow, offering more ways to produce quality work while saving resources and reducing waste.

The improvements in this field promise a future where technology and craftsmanship work together. As the tools become more precise and easier to use, the range of projects that can be achieved will only increase. Whether you are an artist, an engineer, or a small business owner, CNC machining provides a simple and reliable way to achieve the best results.

 

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خطا: محصول معتبر یافت نشد (ID: 27096, Type: post)
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Product Title
CNC Machining: A Simple Guide to Precision Stone Cutting
Public name
Cut Broken Finish
A structured, natural-looking surface with controlled broken grooves that softens reflections and adds depth to façades and feature walls.

WHAT THIS FINISH DOES

Soft, leather-like texture
In a cut broken finish, the stone is first sawn into slabs, then the face is worked with a combination of machine and hand tools to create a field of controlled grooves and broken ridges. Instead of a flat, polished surface, you get a matte, non-reflective texture that feels natural and architectural at the same time. Light catches the small steps and fractures, giving the stone more depth and a handcrafted character.
Textured, non-polished surface
Natural broken grooves
Designed for facades

BEST PLACED FOR

Typical applications

this as a design guide only-final suitability is confirmed for each project.

Exterior facades
Architectural skin
Ideal for external cladding where you want strong shadows, natural texture and a less reflective, more monolithic appearance.
Feature interior walls
Statement surfaces
Perfect behind reception desks, stair voids or living spaces where the broken pattern adds movement and depth to the space.
Entrance & landscape walls

Indoor–outdoor

Well suited to boundary walls, entry portals and garden elements that need a durable, sculpted stone texture.

Project-specific guidance

Cut broken (کات بروکن) finishes behave differently on each stone type, from marble and travertine to Chinese and crystal stones. Use this pop-up as a visual and performance guide only. Final panel thickness, joint design and fixing recommendations will be detailed in your Karimi Stone quotation and technical documentation.
Bush Hammered Finish
A highly textured, non-slip surface created by controlled hammer impacts, giving the stone a natural, weathered character for demanding outdoor conditions.

WHAT THIS FINISH DOES

Deep texture, strong performance

In a bush hammered finish, a head fitted with multiple diamond or carbide points repeatedly strikes the stone surface. These impacts chip tiny craters 1–3 mm deep, breaking up the smooth face into a rugged, non-slip texture. The result is a naturally matte, highly tactile surface that feels solid underfoot and stands up to tough weather and heavy use.

High slip resistance
Rugged outdoor texture
Visually natural & matte

BEST PLACED FOR

Typical applications

this as a design guide only-final suitability is confirmed for each project.

Exterior stairs & entries
High traffic
Ideal for external steps, landings and building thresholds where you need extra grip in wet, dusty or icy conditions.
Public paths & plazas
Urban outdoor
Performs well on pavements, plazas and circulation areas exposed to rain and heavy pedestrian movement.
Driveways & ramps
Sloped surfaces
Recommended for sloped vehicle areas and access ramps where additional texture helps reduce the risk of slipping.

Project-specific guidance

Bush hammered finishes behave differently on each stone, depending on density, thickness and mineral structure. Use this view as a visual and performance guide only. Detailed thickness requirements, edge treatment options and any bush hammered + brushed combinations are confirmed on your Karimi Stone quotation and technical documents.
Brushed & Tumbled Finish
A character-rich surface that combines a softly brushed texture with gently worn, rounded edges for an antique yet refined look.

WHAT THIS FINISH DOES

Soft, leather-like texture
The tumbled process softly wears back edges and corners, creating a rounded, timeworn profile with an antique feel. Brushing then moves across the surface with wire brushes, opening the softer areas and polishing the harder minerals. Together, they create a stone that feels naturally aged, gently textured and visually calm, with no sharp edges under hand or bare feet.
Antique, lived-in character
Softened edges & corners
Textured, low-glare surface

BEST PLACED FOR

Typical applications

this as a design guide only-final suitability is confirmed for each project.

Pool edges & terraces
Wet outdoor
Rounded edges and textured faces make this finish ideal around pools, terraces and steps where bare feet and slip-resistance both matter.
Garden paths & courtyards
Landscapes
Delivers a softly aged, European-style feel for pathways, courtyards and intimate outdoor rooms with a relaxed, informal character.
Feature entries & stairs
High touch
Perfect for entrance landings, external stairs and thresholds where you want a tactile, durable finish that looks established from day one.

Project-specific guidance

Brushed & tumbled finishes will express differently on each stone, depending on hardness, colour and veining. Use this view as a visual guide only – detailed performance, edge details and format options are confirmed on your Karimi Stone quotation and technical documentation.

Brushed (leathered) Finish

A softly textured, low-glare surface created with wire brushes – similar to natural leather under hand, with gentle movement across the stone.

WHAT THIS FINISH DOES

Soft, leather-like texture
Instead of polishing with hard abrasives, wire brushes work across the stone surface. They ease into the softer veins and tiny pores, gently deepening them while polishing the harder areas. The result is a lightly uneven, tactile surface that feels soft and natural rather than glossy.

Leather-like touch

Low-glare, refined look

Subtle texture variation

BEST PLACED FOR

Typical applications

this as a design guide only-final suitability is confirmed for each project.

Living areas

Interior floors

A warm, tactile alternative to high-gloss finishes in lounges and family spaces where you want softness underfoot.
Feature walls

Vertical surfaces

Highlights the natural movement of the stone on fireplaces, TV walls and entry moments without strong reflection.
 
Covered terraces

Indoor–outdoor

Ideal for semi-outdoor rooms and verandas where you want a gentle texture that transitions smoothly from inside to out.

Project-specific guidance

Brushed (leathered) finishes will look and feel slightly different on each stone, depending on colour, density and veining. Use this view as a visual guide only – final recommendations and performance details are provided on your Karimi Stone quotation and technical documentation.

Acid-washed finish

A honed stone treated with acid to create a softly etched, slightly coarse surface – adding slip resistance while keeping a natural, organic look.
WHAT THIS FINISH DOES
Subtle texture, more grip
In an acid-washed finish, a honed surface is treated with acid to lightly etch the stone. Different minerals react at different rates, so the face becomes gently irregular, adding a natural, tactile feel and improved slip resistance.
Etched, natural look

Etched, natural look

Etched, natural look

BEST PLACED FOR
Typical applications
Use this as a design guide only – final suitability is confirmed for each project.
Terraces & patios
Outdoor living
Comfortable underfoot with enough grip for entertaining spaces exposed to light rain and morning dew.
Garden paths

Circulation

A refined alternative to rougher textures where you still want slip resistance in planted landscapes.
Poolside surrounds
Wet areas
Suited to pool edges and adjacent walkways where occasional splashing calls for extra control and safety.

Project-specific guidance

Acid-washed performance and appearance vary with stone type, colour and mineral content. Use this view as a visual guide only – detailed slip-resistance values and final recommendations are provided on your Karimi Stone quotation and technical documentation.

Edge Finish

Explore Karimi Stone edge styles and see how each profile changes the character of your tiles, from crisp architectural cuts to softly worn, tactile edges.

HOW IT WORKS
Visual guide, not a strict spec
Use this pop-up as a quick design guide. Shapes, softness and texture are shown in a simplified way – your final edge will respond to the exact stone, thickness and project details.
EDGE FAMILY OVERVIEW
Four ways to finish a Karimi Stone edge

Sawn

Split-edge

Tumbled

Chiseled

From expressive and hand-worked to minimal and precise.

HIGHLIGHTED PROFILE

FOCUS: Sawn EDGE

Straight, precise cuts for modern detailing
Sawn, straight-cut edges with a precise, modern line – perfect for minimal façades, slim coping and any detailing where you want the stone to feel tailored and quietly refined.
Contemporary facades
Steps & landings
Interior transitions

EDGE FAMILY OVERVIEW

Explore alternative profiles
Split-edge
Rugged & bold
Rough, fractured faces with deeper shadows, perfect for more rustic walls and strong landscape gestures.
Chiseled
Expressive texture
Hand-worked breaks and small variations that give steps and cappings a bold, architectural outline.
Tumbled
Soft & relaxed
Gently rounded, touch-friendly edges that feel calm under hand and barefoot – suited to pools and terraces.
Project-specific confirmation
Availability and exact expression of each edge profile depend on stone type, thickness and fabrication method. Final details are always documented on your Karimi Stone quotation and approved workshop drawings before production.

Edge Finish

Explore Karimi Stone edge styles and see how each profile changes the character of your tiles, from crisp architectural cuts to softly worn, tactile edges.

HOW IT WORKS
Visual guide, not a strict spec
Use this pop-up as a quick design guide. Shapes, softness and texture are shown in a simplified way – your final edge will respond to the exact stone, thickness and project details.
EDGE FAMILY OVERVIEW
Four ways to finish a Karimi Stone edge

Split-edge

Sawn

Tumbled

Chiseled

From expressive and hand-worked to minimal and precise.

HIGHLIGHTED PROFILE

FOCUS: Split-edge EDGE

Rough, fractured faces with deeper shadows
Split-edge, rugged & bold, with rough, fractured faces that catch light and deepen shadows – ideal for rustic walls, feature plinths and landscape gestures that need more presence.
Pool coping & surrounds
Family terraces
Barefoot circulation areas

EDGE FAMILY OVERVIEW

Explore alternative profiles
Sawn
Clean & minimal

Straight, crisp lines that keep attention on form and alignment. Ideal for contemporary interiors and tight detailing.

Chiseled
Expressive texture
Hand-worked breaks and small variations that give steps and cappings a bold, architectural outline.
Tumbled
Soft & relaxed
Gently rounded, touch-friendly edges that feel calm under hand and barefoot – suited to pools and terraces.
Project-specific confirmation
Availability and exact expression of each edge profile depend on stone type, thickness and fabrication method. Final details are always documented on your Karimi Stone quotation and approved workshop drawings before production.

Edge Finish

Explore Karimi Stone edge styles and see how each profile changes the character of your tiles, from crisp architectural cuts to softly worn, tactile edges.

HOW IT WORKS
Visual guide, not a strict spec
Use this pop-up as a quick design guide. Shapes, softness and texture are shown in a simplified way – your final edge will respond to the exact stone, thickness and project details.
EDGE FAMILY OVERVIEW
Four ways to finish a Karimi Stone edge

Tumbled

Sawn

Split-edge

Chiseled

From expressive and hand-worked to minimal and precise.

HIGHLIGHTED PROFILE

FOCUS: Tumbled EDGE

Gently rounded, touch-friendly edges
Tumbled, soft & relaxed, gently rounded, touch-friendly edges that feel calm under hand and barefoot – suited to pools, terraces and any space where comfort and ease are the priority.
Pool coping & surrounds
Family terraces
Barefoot circulation areas

EDGE FAMILY OVERVIEW

Explore alternative profiles
Sawn
Clean & minimal

Straight, crisp lines that keep attention on form and alignment. Ideal for contemporary interiors and tight detailing.

Chiseled
Expressive texture
Hand-worked breaks and small variations that give steps and cappings a bold, architectural outline.
Split-edge
Rugged texture

Irregular, fractured faces with deep shadow – perfect for more rustic walls and bold landscape gestures.

Project-specific confirmation
Availability and exact expression of each edge profile depend on stone type, thickness and fabrication method. Final details are always documented on your Karimi Stone quotation and approved workshop drawings before production.

Edge Finish

Explore Karimi Stone edge styles and see how each profile changes the character of your tiles, from crisp architectural cuts to softly worn, tactile edges.

HOW IT WORKS
Visual guide, not a strict spec
Use this pop-up as a quick design guide. Shapes, softness and texture are shown in a simplified way – your final edge will respond to the exact stone, thickness and project details.
EDGE FAMILY OVERVIEW
Four ways to finish a Karimi Stone edge

Chiseled

Sawn

Split-edge

Tumbled

From expressive and hand-worked to minimal and precise.

HIGHLIGHTED PROFILE

FOCUS: CHISELED EDGE
Expressive, hand-crafted edge for statement pieces

A chiselled finish introduces controlled irregularity along the tile perimeter, catching light and shadow for a more dramatic, crafted feel. Ideal for pool coping, stair nosings and feature steps.

Bold character
Feature details
Outdoor friendly

EDGE FAMILY OVERVIEW

Explore alternative profiles
Sawn
Clean & minimal

Straight, crisp lines that keep attention on form and alignment. Ideal for contemporary interiors and tight detailing.

Tumbled
Soft & relaxed

Gently rounded, touch-friendly edges that feel calm under hand and barefoot – suited to pools and terraces.

Split-edge
Rugged texture

Irregular, fractured faces with deep shadow – perfect for more rustic walls and bold landscape gestures.

Project-specific confirmation
Availability and exact expression of each edge profile depend on stone type, thickness and fabrication method. Final details are always documented on your Karimi Stone quotation and approved workshop drawings before production.

Slip Rating & Wet Pendulum Guide

A concise overview of P1–P5 slip ratings so you can align each Karimi Stone finish with the right space, moisture level and safety expectation.

OVERVIEW

P1 → P5 safety band
P1 P2 P3 P4 P5
What the Wet Pendulum Test (WPT) tells you
The WPT measures how slippery a surface becomes when wet. Each finish is given a P rating from P1 (higher slip risk) through to P5 (maximum grip). As the number increases, the expected slip resistance also increases.

RATING SCALE SNAPSHOT

From higher slip risk to maximum grip
Each Karimi Stone P icon below is your quick visual code before checking detailed applications.

P1 → P5  Left = smoother | Right = more textured

P1

Dry circulation

Higher slip risk

For dry-only walkways and light traffic areas where water is not expected on the surface.

P2

Light splash

Occasional moisture
Bathrooms, small kitchens and transition areas that see brief, easily managed water.
P3

Everyday wet public

Balanced grip
Entries, amenities, undercover car parks and fresh food retail where wet floors are common.
P4

High exposure

Wet, high traffic
Pool surrounds, communal showers and external ramps under 1:14 where water is constant.
P5

Maximum grip

Highest safety band

Commercial kitchens, covered loading docks and pool ramps or stairs leading into water.

HOW TO READ THIS POPUP

Start with water, movement and consequence
Consider how wet the floor can get, how quickly people move, and how critical a slip could be. Then use the cards below to align each area of your project with a suitable P rating before you select a Karimi Stone finish.

TYPICAL APPLICATIONS

P1 – dry circulation
Higher slip risk when wet

P1
For areas intended to remain dry with controlled walking speeds – such as supermarket aisles, separate shops inside centres or dry lobby and corridor zones.
Retail aisles
Dry-only entries
Light traffic

P2 – light splash
Transitional & semi-wet areas

P2
For spaces where occasional water is expected but quickly managed – like hotel bathrooms, apartment kitchens, laundries and transition zones between wet and dry areas.
Hotel bathrooms
Apartment kitchens
Laundries

P3 – regularly wet public
Balanced everyday grip

P3
Used where wet conditions are common – entries and access ways, toilet facilities in public buildings, undercover car parks and fresh food retail areas.
Public entries
Toilet facilities
Undercover parking

P4 – high exposure
Wet, high traffic environments

P4
Selected for consistently wet and busy areas such as pool surrounds, communal showers, external ramps under 1:14 and service zones behind bars.
Pool surrounds
Communal showers
Light traffic

P5 – maximum grip
Demanding commercial use

P5
For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.
Commercial kitchens
Loading docks
Pool ramps & stairs
TEST STATUS CODES

Where a P rating is not shown

For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.

?

N/T

No Wet Pendulum slip testing has yet been performed on this surface finish.

N/A

Wet Pendulum testing is not applicable or cannot be performed for this surface format.

W

WPT

Indicates that the Wet Pendulum Test method has been used to determine the rating.

Always refer to the specific data sheet for each Karimi Stone product to see which of these codes or P ratings apply.

Information disclaimer

This guide is a general summary only and does not constitute legal or compliance advice. Slip resistance requirements vary by project, location and use. Always confirm ratings and regulatory obligations with qualified slip-rating and building-compliance professionals before final specification.

Slip Rating & Wet Pendulum Guide

A concise overview of P1–P5 slip ratings so you can align each Karimi Stone finish with the right space, moisture level and safety expectation.

OVERVIEW

P1 → P5 safety band
P1 P2 P3 P4 P5
What the Wet Pendulum Test (WPT) tells you
The WPT measures how slippery a surface becomes when wet. Each finish is given a P rating from P1 (higher slip risk) through to P5 (maximum grip). As the number increases, the expected slip resistance also increases.

RATING SCALE SNAPSHOT

From higher slip risk to maximum grip
Each Karimi Stone P icon below is your quick visual code before checking detailed applications.

P1 → P5  Left = smoother | Right = more textured

P1

Dry circulation

Higher slip risk

For dry-only walkways and light traffic areas where water is not expected on the surface.

P2

Light splash

Occasional moisture
Bathrooms, small kitchens and transition areas that see brief, easily managed water.
P3

Everyday wet public

Balanced grip
Entries, amenities, undercover car parks and fresh food retail where wet floors are common.
P4

High exposure

Wet, high traffic
Pool surrounds, communal showers and external ramps under 1:14 where water is constant.
P5

Maximum grip

Highest safety band

Commercial kitchens, covered loading docks and pool ramps or stairs leading into water.

HOW TO READ THIS POPUP

Start with water, movement and consequence
Consider how wet the floor can get, how quickly people move, and how critical a slip could be. Then use the cards below to align each area of your project with a suitable P rating before you select a Karimi Stone finish.

TYPICAL APPLICATIONS

P1 – dry circulation
Higher slip risk when wet

P1
For areas intended to remain dry with controlled walking speeds – such as supermarket aisles, separate shops inside centres or dry lobby and corridor zones.
Retail aisles
Dry-only entries
Light traffic

P2 – light splash
Transitional & semi-wet areas

P2
For spaces where occasional water is expected but quickly managed – like hotel bathrooms, apartment kitchens, laundries and transition zones between wet and dry areas.
Hotel bathrooms
Apartment kitchens
Laundries

P3 – regularly wet public
Balanced everyday grip

P3
Used where wet conditions are common – entries and access ways, toilet facilities in public buildings, undercover car parks and fresh food retail areas.
Public entries
Toilet facilities
Undercover parking

P4 – high exposure
Wet, high traffic environments

P4
Selected for consistently wet and busy areas such as pool surrounds, communal showers, external ramps under 1:14 and service zones behind bars.
Pool surrounds
Communal showers
Light traffic

P5 – maximum grip
Demanding commercial use

P5
For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.
Commercial kitchens
Loading docks
Pool ramps & stairs
TEST STATUS CODES

Where a P rating is not shown

For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.

?

N/T

No Wet Pendulum slip testing has yet been performed on this surface finish.

N/A

Wet Pendulum testing is not applicable or cannot be performed for this surface format.

W

WPT

Indicates that the Wet Pendulum Test method has been used to determine the rating.

Always refer to the specific data sheet for each Karimi Stone product to see which of these codes or P ratings apply.

Information disclaimer

This guide is a general summary only and does not constitute legal or compliance advice. Slip resistance requirements vary by project, location and use. Always confirm ratings and regulatory obligations with qualified slip-rating and building-compliance professionals before final specification.

Slip Rating & Wet Pendulum Guide

A concise overview of P1–P5 slip ratings so you can align each Karimi Stone finish with the right space, moisture level and safety expectation.

OVERVIEW

P1 → P5 safety band
P1 P2 P3 P4 P5
What the Wet Pendulum Test (WPT) tells you
The WPT measures how slippery a surface becomes when wet. Each finish is given a P rating from P1 (higher slip risk) through to P5 (maximum grip). As the number increases, the expected slip resistance also increases.

RATING SCALE SNAPSHOT

From higher slip risk to maximum grip
Each Karimi Stone P icon below is your quick visual code before checking detailed applications.

P1 → P5  Left = smoother | Right = more textured

P1

Dry circulation

Higher slip risk

For dry-only walkways and light traffic areas where water is not expected on the surface.

P2

Light splash

Occasional moisture
Bathrooms, small kitchens and transition areas that see brief, easily managed water.
P3

Everyday wet public

Balanced grip
Entries, amenities, undercover car parks and fresh food retail where wet floors are common.
P4

High exposure

Wet, high traffic
Pool surrounds, communal showers and external ramps under 1:14 where water is constant.
P5

Maximum grip

Highest safety band

Commercial kitchens, covered loading docks and pool ramps or stairs leading into water.

HOW TO READ THIS POPUP

Start with water, movement and consequence
Consider how wet the floor can get, how quickly people move, and how critical a slip could be. Then use the cards below to align each area of your project with a suitable P rating before you select a Karimi Stone finish.

TYPICAL APPLICATIONS

P1 – dry circulation
Higher slip risk when wet

P1
For areas intended to remain dry with controlled walking speeds – such as supermarket aisles, separate shops inside centres or dry lobby and corridor zones.
Retail aisles
Dry-only entries
Light traffic

P2 – light splash
Transitional & semi-wet areas

P2
For spaces where occasional water is expected but quickly managed – like hotel bathrooms, apartment kitchens, laundries and transition zones between wet and dry areas.
Hotel bathrooms
Apartment kitchens
Laundries

P3 – regularly wet public
Balanced everyday grip

P3
Used where wet conditions are common – entries and access ways, toilet facilities in public buildings, undercover car parks and fresh food retail areas.
Public entries
Toilet facilities
Undercover parking

P4 – high exposure
Wet, high traffic environments

P4
Selected for consistently wet and busy areas such as pool surrounds, communal showers, external ramps under 1:14 and service zones behind bars.
Pool surrounds
Communal showers
Light traffic

P5 – maximum grip
Demanding commercial use

P5
For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.
Commercial kitchens
Loading docks
Pool ramps & stairs
TEST STATUS CODES

Where a P rating is not shown

For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.

?

N/T

No Wet Pendulum slip testing has yet been performed on this surface finish.

N/A

Wet Pendulum testing is not applicable or cannot be performed for this surface format.

W

WPT

Indicates that the Wet Pendulum Test method has been used to determine the rating.

Always refer to the specific data sheet for each Karimi Stone product to see which of these codes or P ratings apply.

Information disclaimer

This guide is a general summary only and does not constitute legal or compliance advice. Slip resistance requirements vary by project, location and use. Always confirm ratings and regulatory obligations with qualified slip-rating and building-compliance professionals before final specification.

Slip Rating & Wet Pendulum Guide

A concise overview of P1–P5 slip ratings so you can align each Karimi Stone finish with the right space, moisture level and safety expectation.

OVERVIEW

P1 → P5 safety band
P1 P2 P3 P4 P5
What the Wet Pendulum Test (WPT) tells you
The WPT measures how slippery a surface becomes when wet. Each finish is given a P rating from P1 (higher slip risk) through to P5 (maximum grip). As the number increases, the expected slip resistance also increases.

RATING SCALE SNAPSHOT

From higher slip risk to maximum grip
Each Karimi Stone P icon below is your quick visual code before checking detailed applications.

P1 → P5  Left = smoother | Right = more textured

P1

Dry circulation

Higher slip risk

For dry-only walkways and light traffic areas where water is not expected on the surface.

P2

Light splash

Occasional moisture
Bathrooms, small kitchens and transition areas that see brief, easily managed water.
P3

Everyday wet public

Balanced grip
Entries, amenities, undercover car parks and fresh food retail where wet floors are common.
P4

High exposure

Wet, high traffic
Pool surrounds, communal showers and external ramps under 1:14 where water is constant.
P5

Maximum grip

Highest safety band

Commercial kitchens, covered loading docks and pool ramps or stairs leading into water.

HOW TO READ THIS POPUP

Start with water, movement and consequence
Consider how wet the floor can get, how quickly people move, and how critical a slip could be. Then use the cards below to align each area of your project with a suitable P rating before you select a Karimi Stone finish.

TYPICAL APPLICATIONS

P1 – dry circulation
Higher slip risk when wet

P1
For areas intended to remain dry with controlled walking speeds – such as supermarket aisles, separate shops inside centres or dry lobby and corridor zones.
Retail aisles
Dry-only entries
Light traffic

P2 – light splash
Transitional & semi-wet areas

P2
For spaces where occasional water is expected but quickly managed – like hotel bathrooms, apartment kitchens, laundries and transition zones between wet and dry areas.
Hotel bathrooms
Apartment kitchens
Laundries

P3 – regularly wet public
Balanced everyday grip

P3
Used where wet conditions are common – entries and access ways, toilet facilities in public buildings, undercover car parks and fresh food retail areas.
Public entries
Toilet facilities
Undercover parking

P4 – high exposure
Wet, high traffic environments

P4
Selected for consistently wet and busy areas such as pool surrounds, communal showers, external ramps under 1:14 and service zones behind bars.
Pool surrounds
Communal showers
Light traffic

P5 – maximum grip
Demanding commercial use

P5
For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.
Commercial kitchens
Loading docks
Pool ramps & stairs
TEST STATUS CODES

Where a P rating is not shown

For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.

?

N/T

No Wet Pendulum slip testing has yet been performed on this surface finish.

N/A

Wet Pendulum testing is not applicable or cannot be performed for this surface format.

W

WPT

Indicates that the Wet Pendulum Test method has been used to determine the rating.

Always refer to the specific data sheet for each Karimi Stone product to see which of these codes or P ratings apply.

Information disclaimer

This guide is a general summary only and does not constitute legal or compliance advice. Slip resistance requirements vary by project, location and use. Always confirm ratings and regulatory obligations with qualified slip-rating and building-compliance professionals before final specification.

Slip Rating & Wet Pendulum Guide

A concise overview of P1–P5 slip ratings so you can align each Karimi Stone finish with the right space, moisture level and safety expectation.

OVERVIEW

P1 → P5 safety band
P1 P2 P3 P4 P5
What the Wet Pendulum Test (WPT) tells you
The WPT measures how slippery a surface becomes when wet. Each finish is given a P rating from P1 (higher slip risk) through to P5 (maximum grip). As the number increases, the expected slip resistance also increases.

RATING SCALE SNAPSHOT

From higher slip risk to maximum grip
Each Karimi Stone P icon below is your quick visual code before checking detailed applications.

P1 → P5  Left = smoother | Right = more textured

P1

Dry circulation

Higher slip risk

For dry-only walkways and light traffic areas where water is not expected on the surface.

P2

Light splash

Occasional moisture
Bathrooms, small kitchens and transition areas that see brief, easily managed water.
P3

Everyday wet public

Balanced grip
Entries, amenities, undercover car parks and fresh food retail where wet floors are common.
P4

High exposure

Wet, high traffic
Pool surrounds, communal showers and external ramps under 1:14 where water is constant.
P5

Maximum grip

Highest safety band

Commercial kitchens, covered loading docks and pool ramps or stairs leading into water.

HOW TO READ THIS POPUP

Start with water, movement and consequence
Consider how wet the floor can get, how quickly people move, and how critical a slip could be. Then use the cards below to align each area of your project with a suitable P rating before you select a Karimi Stone finish.

TYPICAL APPLICATIONS

P1 – dry circulation
Higher slip risk when wet

P1
For areas intended to remain dry with controlled walking speeds – such as supermarket aisles, separate shops inside centres or dry lobby and corridor zones.
Retail aisles
Dry-only entries
Light traffic

P2 – light splash
Transitional & semi-wet areas

P2
For spaces where occasional water is expected but quickly managed – like hotel bathrooms, apartment kitchens, laundries and transition zones between wet and dry areas.
Hotel bathrooms
Apartment kitchens
Laundries

P3 – regularly wet public
Balanced everyday grip

P3
Used where wet conditions are common – entries and access ways, toilet facilities in public buildings, undercover car parks and fresh food retail areas.
Public entries
Toilet facilities
Undercover parking

P4 – high exposure
Wet, high traffic environments

P4
Selected for consistently wet and busy areas such as pool surrounds, communal showers, external ramps under 1:14 and service zones behind bars.
Pool surrounds
Communal showers
Light traffic

P5 – maximum grip
Demanding commercial use

P5
For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.
Commercial kitchens
Loading docks
Pool ramps & stairs
TEST STATUS CODES

Where a P rating is not shown

For the most demanding applications: commercial kitchens, loading docks under cover, steep external ramps, swimming pool ramps and stairs leading into water.

?

N/T

No Wet Pendulum slip testing has yet been performed on this surface finish.

N/A

Wet Pendulum testing is not applicable or cannot be performed for this surface format.

W

WPT

Indicates that the Wet Pendulum Test method has been used to determine the rating.

Always refer to the specific data sheet for each Karimi Stone product to see which of these codes or P ratings apply.

Information disclaimer

This guide is a general summary only and does not constitute legal or compliance advice. Slip resistance requirements vary by project, location and use. Always confirm ratings and regulatory obligations with qualified slip-rating and building-compliance professionals before final specification.

Colour Variation Guide

A premium, visual overview of how colour movement evolves from calm, uniform surfaces to high-impact, expressive finishes.

Variation scale

Choose a variation level

V4 selected

V0
V1
V2
V3
V4
Calm & uniform
Highly varied
Reading the scale
V0 is almost seamless with minimal tone shifts, while V4 is bold and highly expressive. Use this guide to align the surface movement with the mood of your space.
Variation reference cards

Near-Zero Variation – V0

Ultra-consistent tone with almost no visible shift between pieces. Ideal for gallery-like, minimal interiors where the surface should visually disappear.

Soft Variation – V1

Delicate, low-contrast changes gently break up the surface. A refined choice for calm kitchens, ensuites, and open-plan living spaces.

Moderate Variation – V2

Balanced, natural movement with visible differences in tone. Adds character and depth while staying easy to style with cabinetry and textiles.

Expressive Variation – V3

Stronger contrast from piece to piece with noticeable light and dark areas. Best when you want the surface to act as a key design feature.

High-Drama Variation – V4

Pronounced shifts in hue and tone, creating a richly patterned, statement finish. Ideal for feature walls, dramatic floors, or high-impact spaces.

Colour Variation Guide

A premium, visual overview of how colour movement evolves from calm, uniform surfaces to high-impact, expressive finishes.

Variation scale

Choose a variation level

V3 selected

V0
V1
V2
V3
V4
Calm & uniform
Highly varied
Reading the scale
V0 is almost seamless with minimal tone shifts, while V4 is bold and highly expressive. Use this guide to align the surface movement with the mood of your space.
Variation reference cards

Near-Zero Variation – V0

Ultra-consistent tone with almost no visible shift between pieces. Ideal for gallery-like, minimal interiors where the surface should visually disappear.

Soft Variation – V1

Delicate, low-contrast changes gently break up the surface. A refined choice for calm kitchens, ensuites, and open-plan living spaces.

Moderate Variation – V2

Balanced, natural movement with visible differences in tone. Adds character and depth while staying easy to style with cabinetry and textiles.

Expressive Variation – V3

Stronger contrast from piece to piece with noticeable light and dark areas. Best when you want the surface to act as a key design feature.

High-Drama Variation – V4

Pronounced shifts in hue and tone, creating a richly patterned, statement finish. Ideal for feature walls, dramatic floors, or high-impact spaces.

Colour Variation Guide

A premium, visual overview of how colour movement evolves from calm, uniform surfaces to high-impact, expressive finishes.

Variation scale

Choose a variation level

V2 selected

V0
V1
V2
V3
V4
Calm & uniform
Highly varied
Reading the scale
V0 is almost seamless with minimal tone shifts, while V4 is bold and highly expressive. Use this guide to align the surface movement with the mood of your space.
Variation reference cards

Near-Zero Variation – V0

Ultra-consistent tone with almost no visible shift between pieces. Ideal for gallery-like, minimal interiors where the surface should visually disappear.

Soft Variation – V1

Delicate, low-contrast changes gently break up the surface. A refined choice for calm kitchens, ensuites, and open-plan living spaces.

Moderate Variation – V2

Balanced, natural movement with visible differences in tone. Adds character and depth while staying easy to style with cabinetry and textiles.

Expressive Variation – V3

Stronger contrast from piece to piece with noticeable light and dark areas. Best when you want the surface to act as a key design feature.

High-Drama Variation – V4

Pronounced shifts in hue and tone, creating a richly patterned, statement finish. Ideal for feature walls, dramatic floors, or high-impact spaces.

Colour Variation Guide

A premium, visual overview of how colour movement evolves from calm, uniform surfaces to high-impact, expressive finishes.

Variation scale

Choose a variation level
V1 selected
V0
V1
V2
V3
V4
Calm & uniform
Highly varied
Reading the scale
V0 is almost seamless with minimal tone shifts, while V4 is bold and highly expressive. Use this guide to align the surface movement with the mood of your space.
Variation reference cards

Near-Zero Variation – V0

Ultra-consistent tone with almost no visible shift between pieces. Ideal for gallery-like, minimal interiors where the surface should visually disappear.

Soft Variation – V1

Delicate, low-contrast changes gently break up the surface. A refined choice for calm kitchens, ensuites, and open-plan living spaces.

Moderate Variation – V2

Balanced, natural movement with visible differences in tone. Adds character and depth while staying easy to style with cabinetry and textiles.

Expressive Variation – V3

Stronger contrast from piece to piece with noticeable light and dark areas. Best when you want the surface to act as a key design feature.

High-Drama Variation – V4

Pronounced shifts in hue and tone, creating a richly patterned, statement finish. Ideal for feature walls, dramatic floors, or high-impact spaces.

Colour Variation Guide

A premium, visual overview of how colour movement evolves from calm, uniform surfaces to high-impact, expressive finishes.

Variation scale

Choose a variation level

V0 selected

V0
V1
V2
V3
V4
Calm & uniform

Highly varied

Reading the scale
V0 is almost seamless with minimal tone shifts, while V4 is bold and highly expressive. Use this guide to align the surface movement with the mood of your space.
Variation reference cards

Near-Zero Variation – V0

Ultra-consistent tone with almost no visible shift between pieces. Ideal for gallery-like, minimal interiors where the surface should visually disappear.

Soft Variation – V1

Delicate, low-contrast changes gently break up the surface. A refined choice for calm kitchens, ensuites, and open-plan living spaces.

Moderate Variation – V2

Balanced, natural movement with visible differences in tone. Adds character and depth while staying easy to style with cabinetry and textiles.

Expressive Variation – V3

Stronger contrast from piece to piece with noticeable light and dark areas. Best when you want the surface to act as a key design feature.

High-Drama Variation – V4

Pronounced shifts in hue and tone, creating a richly patterned, statement finish. Ideal for feature walls, dramatic floors, or high-impact spaces.


تست آونگ یا Pendulum Test روشی استاندارد برای سنجش میزان لغزندگی سطوح سنگ و سرامیک است، خصوصاً در حالت خیس که خطرش بیشتر می‌شود. در این آزمون، دستگاهی با پاشنه‌ی لاستیکی شبیه‌سازی‌شده روی سطح خیس کشیده می‌شود و بر اساس میزان انرژی از دست‌رفته، عددی به نام BPN یا SRV به‌عنوان شاخص مقاومت در برابر لغزش ارائه می‌شود. عواملی مانند زبری یا صافی سطح، وجود گردوغبار، آب یا روغن و همچنین دمای محیط (خصوصاً در شرایط یخ‌زدگی) بر نتیجه اثر می‌گذارند. این تست به‌طور گسترده در صنعت سنگ ساختمانی برای ارزیابی ایمنی سطوح کف، فضاهای بیرونی و محل‌های پرتردد استفاده می‌شود.

P1

P2

P3

P4

P5

→ High Slip Risk 

Moderate Slip Risk

→ Moderate Slip Risk 

→ Low Slip Risk 

→ Low Slip Risk

سلب مسئولیت اطلاعاتی

  • مطالب ارائه‌شده جنبه عمومی و آموزشی دارند.
  • این محتوا توصیه حقوقی یا فنی قطعی نیست و نباید صرفاً به آن تکیه شود.
  • برای مشاوره فنی باید به متخصصان دارای صلاحیت مراجعه شود.
  • Karimi Stone  هیچ مسئولیتی در قبال خطاها، کمبودها یا خسارات ناشی از استفاده از این اطلاعات نمی‌پذیرد.
  • کاربران باید تحقیقات مستقل خود را برای اطمینان از صحت اطلاعات انجام دهند.

WPT

LOCATION

محوطه‌ها و رمپ‌های بیرونی

P5

رمپ‌های بیرونی شامل راه‌های دارای شیب، ورودی پارکینگ‌ها، پیاده‌روها و … با شیب بیشتر از 1:14

P4

رمپ‌ها و پیاده‌روهای بیرونی با شیب کمتر از 1:14
محوطه‌های باز تجاری مانند بازارها
پارکینگ‌های روباز
ستون‌نماهای بیرونی، پیاده‌روها، گذرگاه‌های عابر پیاده
بالکن‌ها، ایوان‌ها، پارکینگ‌های روباز، حیاط‌ها، بام‌ها

P3

پارکینگ‌های سرپوشیده

هتل‌ها، ادارات، ساختمان‌های عمومی، مدارس و مهدکودک‌ها

P3

فضاهای خیس (Wet area) سرویس‌های بهداشتی در دفاتر، هتل‌ها و مراکز خرید

P2

فضاهای گذار و یا فضاهایی بین فضای خشک و خیس (Transitional area) حمام‌های آپارتمان‌های هتل، سرویس‌های بهداشتی و دستشویی‌ها

P1

فضاهای خشک (Dry area)

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Reference Catalog
Stone Size Guide
Standard slab, tile, pattern, and step sizes to help plan your takeoffs and orders. Dimensions shown in centimeters unless noted.

Notes
• Slab tolerance: ±20 mm on length/width, thickness as listed. • Tile thickness is nominal; verify per batch. • Custom sizes available upon request.

Srandard Slab

Dimensions (cm)

Thickness

(240 x 140) ±20

2 cm

(240 x 140) ±20

3 cm

Big Slab

Dimensions (cm)

Thickness

(280 x 180) ±20

2 cm

(280 x 180) ±20

3 cm

Tolerance applies to length and width. Thickness tolerance available on request.

Large Format

91.5 × 61

1.5/2 cm

61 × 61

1.5 cm

Medium

81.2 × 40.6

1.5 cm

61 × 40.6

1.2 cm

61 × 30.5

1.2 cm

Small

40.6 × 40.6

1.2 cm

20.3 × 20.3

1.2 cm

10 × 10

1.2 cm

Other finishes and bevels available. Sizing listed as length × width × thickness.

Classic Pattern

PATTERN SET

1.2 cm

Modular layout supplied as a set. Contact for sheet map.

OPS Pattern

OPS SET

1.5/2 cm

Modular layout supplied as a set. Contact for sheet map.

Custom

Per spec

0.8–3 cm

Modular layout supplied as a set. Contact for sheet map.

Steps & Risers

Component

Dimensions (cm)

Thickness

Step

(100–120) × 35

3 cm

Riser

(100–120) × 15

2 cm

Lengths supplied within range; specify exact cut length if required.