Industry Standards

Not only do we take pride in fashioning beautiful designs, but we also believe in being best-in-class when it comes to industry standards. That’s why we strive to exceed our customers’ expectations in design and we surpass ASTM standards when it comes to the quality of our products.




Product usage

Icon of a tiled floor representing floor tile application

Floor Tile

Tile meets all criteria for use on floors; however, it may also be used on vertical applications such as walls, countertops and fireplace surrounds.*
Icon of a tiled wall representing wall tile application

Wall Tile

Tile meets all criteria for use on vertical applications such as walls, backsplashes and fireplace surrounds.*
An illustration of a kitchen countertop in black and white


Tile meets all criteria for use on countertops, and vertical surfaces such as walls, backsplash, and fireplace surrounds.*

An illustration of a shower head with water coming from it

Shower floor

Tile meets all criteria for use on the shower floor. It may also be used for other floors, walls, backsplashes, etc.*
Icon with cloud, sun, and raindrops indicating a product can be used outdoors



Tile meets all criteria for use in outdoor applications.†

*See performance features for installation-specific details. 
† See floor and wall usage criteria and abrasion resistance, DCOF, and frost resistance criteria for installation-specific details.

Product Features

Icon depicting a shoe walking on a surface to represent slip resistant tile


Tile has infused technology that makes it 50% more slip-resistant.
An illustartion of a fingerprint like swirl representing customization of tile


Tile order can be customized.
An illustration of an encaustic patterned tile in black and white


Encaustic-look porcelain tile.

Large Format

Tile available in sizes larger than 15 inches.
Icon for tile made in the USA

Made in the USA

Tile proudly manufactured in the USA. May contribute to LEED credits for Regional Materials.
Icon representing a decorative mosaic indicating that decorative tile is available


Product has mosaic or deco tile available.
An icon depicting a paver tile laying flat with grass growing around it


Tile can be used outdoors as a paver.


Tile has a terrazzo look style.
Icon with perpendicular lines with the letter T on one side and the letter E on the other representing TruEdge rectified tile


Tile has rectified edges, which can have a smaller grout joint.
The PTCA logo featuring the letters PTCA in black block lettering

Certified Porcelain

Tile has been certified by the Porcelain Tile Certification Agency.
Icon depicting a magnifiying glass with the letter R in the center representing high-definition detail tile

Reveal Imaging

Tile employs imaging technology and inkjet printing.

Post-Consumer Recycled

Tile contains recycled material from post-consumer resources.

Pre-Consumer Recycled

Tile contains recycled material from pre-consumer resources.


Tile contains zero VOCs, zero PVCs, zero formaldehyde, and no allergens.

Product Materials

An icon representing ceramic tile with the letter C


An icon representing glazed ceramic tile with the letter C with the letter G in superscript

Glazed Ceramic

A icon representing porcelain tile with the letter P


An icon representing Glazed porcelain with the letter P and the letter G in superscript

Glazed Porcelain

An icon representing colorbody porcelain with the letter P with the letter C super script

ColorBody Porcelain

An icon representing glass tile with letter G


An icon represenitng metallic tile with the letter M


An icon representing mixed materials tile with the letter M and the letter X in superscript

Mixed materials

An icon representing quartz tile with the letter Q


An icon representing natural stone with the letter N

Natural Stone

An icon representing natural marble with the letter M




An icon representing natural quartzite with the letter Q and letter U


An icon representing natural limestone tile with the letter L


An icon representing natural travertine tile with the letter T


An icon representing natural soapstone with the letters S and O


An icon representing natural slate tile with the letters S and L



Grout Joint Recommendation  This represents the minimum width the grout joint should be to avoid lippage, breakage, etc. There may also be a recommendation for placement of tile in brick joint layout and different requirements for floor and wall installations.
 Shade Variation Tile coloring can range from monochromatic to a highly varied in coloring and shading. Variation exists within individual tiles and from tile to tile. Results range from V0 to V4 where V0 is uniform and monochromatic and V4 has considerable variation from tile to tile. 



Performance Characteristics

Water Absorption  A measurement of density and porosity that determines how much water tile will take on when exposed to water. Based on ASTM testing standards. Results given in percentage of water absorbed by the tile.
 Breaking Strength  A measurement of pounds required to cause a tile to break. Based on ASTM testing standards. Results given in pounds at which the tile broke in testing.
 Scratch Hardness  A measurement of the resistance of a tile when scratched by ten reference materials (gypsum, fluorite, quartz, diamond, etc.). Based on the MOHS hardness scale. Results given on a 1-10 scale where 1 is low scratch resistance and 10 is high scratch resistance.
 Chemical Resistance  A measurement of resistance to chemical substances when exposed over time. Based on ASTM testing standards. Results given as resistant or not resistant.
 Abrasion Resistance  A measurement of resistance to visible surface abrasions and wear. Based on ASTM testing standards. Results given on a 1-5 scale where 1 is best suited for light traffic and 5 is suited for heavy commercial traffic.
 DCOF  Dynamic coefficient of friction, DCOF, measures friction between two surfaces especially where there is contamination. Results reflect the amount of force required to keep two surfaces sliding against one another. StepWise technology increases friction and makes tile 50% more slip resistant than regular tile.



What is DCOF?


DCOF, or dynamic coefficient of friction, is the primary product performance measure used by the North American tile industry to identify suitable applications for a floor product. When it comes to choosing the right tile for an area, DCOF is a main consideration, especially when selecting tiles for areas that may be subjected to water, oil, or grease exposure.


ANSI A137.1 requires tile flooring products to have a DCOF of 0.42 or greater if recommended for use in a level interior space intended to be walked upon when wet. This specification is based on wet DCOF measurement performed according to ANSI A326.3.


ANSI A326.3 Wet DCOF measurements are based on specific standard practices under controlled conditions. These measurements provide useful information for comparison of product performance, but measurements should not be considered as an indicator of whether a slip can occur.


Friction is the innate force that resists the sliding motion of one surface against another. The DCOF of a surface is a measurement of the force necessary to keep a surface already in motion sliding over another surface and it is likened to the frictional forces a person experiences when walking.



Marazzi was among the first in 2012 to join the Tile Council of North America in testing our products for DCOF per the test method now defined in ANSI A326.3. This method is the most widely accepted measurement of dynamic coefficient of friction (DCOF) for hard surface flooring, not just on ceramic tile.


In addition to recommendations for appropriate applications, product DCOF specifications are listed on the Marazzi website.


The chart below details Marazzi’s recommended product application based on measured DCOF values. Due to limitations of the test, measured DCOF value is not an appropriate indicator of performance for all product types. For such products, different criteria are used to determine use classification per the requirements of Section 3.4 of ANSI A326.3-2021.


Regardless of declared product use classification, specifier shall determine materials appropriate for specific project conditions, considering by way of example, but not in limitation, type of use, traffic, expected contaminants, expected maintenance, expected wear, and manufacturers’ guidelines and recommendations.

DCOF Recommended Applications


Marazzi recommends that the following guidelines shall be utilized together with a regular cleaning / maintenance program.

Information in italics correspond to relevant ANSI A326.3 Section 4 - “Product Use Categories”


Product Use Classification Example Area DCOF per ANSI A326.3

Dry & Level Interior


Interior Dry (ID)

Level public areas that are DRY and contaminant free. Some examples are (but not limited to): hotel lobbies, apartments, public buildings, shopping centers (excluding food areas), hospitals, elevator lobbies, interior hallways, cafeterias, retail stores, theatre lobbies and other dry health service areas. ≥ 0.42 Dry

Wet & Level Interior


Interior Wet (IW)

Level public areas that are likely to be walked on when WET. Some examples are (but not limited to): Entry foyers of hotels, offices and other public buildings, supermarkets (entry areas, food preparation, produce, or any area where water may occasionally be present), shopping center food courts, and toilet facilities, and production areas not involving oil or fats.


≥ 0.42 Wet

Exterior Applications


Exterior Wet (EW)

Level Pedestrian areas that could be exposed to water (excluding ice), but are otherwise reasonably maintained, where footwear is typically used. Some examples are (but not limited to): walkways, gazebos, or patio areas. ≥ 0.60 Wet

Pool Decking

(and other wet areas with minimal footwear)


Interior Wet+ (IW+)

Level Service or recreation areas involving constant water where light or no footwear is used. Some examples are (but not limited to): public showers, steam rooms, swimming pool decks, and locker rooms. ≥ 0.60 Wet



Oils / Greases (O/G)

Level Service or production areas involving oils, greases, and/or fats. Some examples are (but not limited to): automotive fluids, catering areas, areas involving deep-fry and grill equipment, other food preparation areas involving grease or oil. BOH (Back of the house) quick service or family style restaurants or delicatessens. Any area where combined grease and water accumulation may be present. Marazzi recommends Quarry tile and treaded paver products for this application.


≥ 0.60 Wet
Ramps & Inclines Inclined areas or ADA compliant ramps. Some examples are (but not limited to): Stairs and stair treads/nosings, wheelchair ramps, workshop bays (where no oil is present), sidewalks, and driveways where pedestrian traffic is normally present. ≥ 0.65 Wet



Additional considerations relating to product selection:


1. Absent exceptions listed on this page indicating otherwise, ceramic and porcelain tiles should not be used in floor applications where there is a consistent surface presence of water, oil, or grease. This includes outdoor areas.


2. Proper maintenance is critical. Improper maintenance and improper maintenance products can result in a build-up on the surface of the tile causing the tile to be slippery. See maintenance recommendations.


3. Test Methods - there are many different test methods related to slip resistance. Marazzi recommends that customers have tile independently tested to determine if the Marazzi product meets the requirements of the customer's preferred test method. Marazzi and the tile industry recognize ANSI A326.3 - American National Standard Test Method for Measuring Dynamic Coefficient of Friction of Hard Surface Flooring Materials. Marazzi does not warrant that any of its products will meet any testing parameter other than that measured per ANSI A326.3.


4. ANSI A137.1 requires that tiles suitable for interior level spaces expected to be walked upon when wet have a minimum, wet DCOF of 0.42.


5. No floor tile is "slip proof."


6. Slippery conditions can be reduced by limiting foot traffic in contaminated conditions, use of appropriate footwear, prompt removal of contaminants, effective drainage, and proper maintenance. Installations and end use conditions can vary. The end user must evaluate the tile to be used with their specific end use conditions, maintenance program(s), and footwear selection to determine compatibility.


7. Tile size can be a factor for slip resistance in wet areas. Smaller sizes allow for more drainage through an increased number of grout joints and easier sloping. Planar variations on larger formats could result in a higher probability of standing water and increase the risk for hydroplaning.


8. Polished and semi polished surfaces create a very smooth surface. Marazzi does not recommend polished surfaces in any areas that may be subjected to water, oil, or grease exposures.


9. Internal manufacturer selection criteria can for example, but not in limitation, be based on factors such as: DCOF limit values established using the ANSI A326.3 test method, limit values based on other test methods, internal reference standards and practices, presence of abrasive grain, presence of surface structure and/or experience with similar surfaces.

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