SupraTile Hidden Slate Black/Grays 5.5 mm x 18x18 Inches Case of 6

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Reg: $82.19/carton
Handling Time Estimate: 1-3 Working Days
  • Quick and easy installation
  • Resistant to oils, chemicals, mold and mildew
  • Excellent resistance to impact, moisture and abrasion
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  • Black
  • Dark Gray
  • Light Gray

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  1. Quick and easy installation
  2. Resistant to oils, chemicals, mold and mildew
  3. Excellent resistance to impact, moisture and abrasion
  4. Warm and comfortable underfoot
  5. Can be installed over old uneven, or contaminated sub-floors
  6. Superior sound absorption, integrated ramp edging for most styles
  7. Easy to remove and relay, protective topcoats available
  8. Made from 80% recycled content

Garage Floors, Basement Flooring, Industrial Flooring, Warehouse Floors, Automotive Flooring

SupraTile Hidden Slate Black / Grays 5.5 mm x 18x18 Inches - Case of 10

SupraTile 5.5mm Series is designed for indoor use applications such as residential kitchens, family rooms, basements, lounge areas, lobbies, gyms/workout areas and other areas where a stylish and comfortable floor tile is desired. Install this SupraTile Hidden Slate Black/Grays 5.5 mm x 18x18 Inches Case of 6 with ease.

SupraTile 5.5mm Series is designed for indoor use applications such as residential kitchens, family rooms, basements, lounge areas, lobbies, gyms/workout areas and other areas where a stylish and comfortable floor tile is desired. Install this SupraTile Hidden Slate Black/Grays 5.5 mm x 18x18 Inches Case of 6 with ease.

The SupraTile 18x18 slate tile product from Greatmats is a lightweight and chemical-resistant flooring that delivers excellent value and durability.

Before installing these tiles, you do not need to make significant repairs or clean contaminants or stains from the subfloors. This greatly simplifies the installation process, meaning you are not wasting time in subfloor preparation. This product is made from 80% recycled content.

Size and Shape Options

Because this 18x18 slate tile uses a hidden dovetail interlocking system, the final layout will have clean, straight edges. Yet, the installation process is extremely easy to complete, because the hidden puzzle edges just pop together with very little effort required.

Each tile measures 18 by 18 inches. The hidden interlock edge does not affect the area of coverage available from a single tile, which will cover 2.25 square feet. This makes it easier to calculate how many tiles the installer needs to cover a certain space.

A single tile weighs 3.4 pounds, which also simplifies the installation process. Installers can carry a large stack of these tiles to the installation location, which makes the entire process go faster.

This 18x18 slate tile model has a 5.5 mm thickness measurement (or about 0.217 inches). At this thickness level, it can safely support people walking on it and passenger vehicles.

Material Options

Customers receive PVC plastic when they order these tiles. PVC offers quite a few benefits as a flooring tile, including:
  • Delivering exceptional durability, as customers receive a 20-year manufacturer warranty.
  • Avoiding gouges, abrasions, and marks from impact from dropped items or from dragged items.
  • Resisting soaking up moisture, allowing the floors to avoid forming mold and mildew.
  • Creating a slight cushioning for people as they walk across the floor while cutting down on noise generation.

PVC’s design and style make this flooring usable in either residential or commercial locations.

Pattern and Texture Options

Customers receive a molded faux slate tile texture across the top of these hidden interlocking edge tiles.

The faux slate pattern provides the benefit of creating a more pleasing look in the final floor layout, while also delivering a bit more traction than a flat tile surface. Should the area become damp, the texture can help you avoid slips.

Should customers want a more aggressive surface texture pattern to avoid potential slips, we offer similarly designed SupraTile products that have a diamond tread texture or a coin top texture.

This 18x18 slate tile product is available in three different neutral color options black, light gray, and dark gray.

Neutral colors are desirable in these tiles, especially when used in commercial or industrial locations where soils may be frequent. The neutral colors can hide the soil, meaning customers need to perform fewer cleanings.

Common Use Options

Our PVC 18x18 slate tile is extremely versatile, giving customers the ability to deploy the tiles in almost any location.

For commercial locations, such as an automotive repair facility, the tile will support the weight of passenger vehicles without buckling or cracking. Additionally, should the tiles become wet, they will maintain their integrity because PVC does not soak up moisture. They offer resistance to oils and chemicals too, which is important in an area with vehicular traffic.

For industrial locations, such as a warehouse or factory setting, this highly durable tile has the ability to stand up to almost any planned use case. Even if the old warehouse flooring has cracks or isn’t as clean as you want to see, these tiles will go directly over the top and hide these imperfections.

For a homeowner, these tiles are useful in a basement where water seepage or flooding from a burst pipe is possible. They will not soak up the water and are easy to clean.

Some homeowners choose to install these tiles in the garage, creating a safer floor than what’s available with bare concrete, especially if the garage often is wet from moisture dripping off cars.

Installation Options

Our 18x18 slate tile is easy to install as a DIY project. Just line up the dovetail tabs extending from the edge of one tile with the hidden dovetail slots on the underside of the adjacent tile. Then press the edges together. They will remain tightly connected without the need to add glue.

By avoiding adding glue, the installer can disassemble the tiles at any time and return to the subfloor. (Installers can add glue for a permanent style of installation.)

To create a clean look in the final layout, we offer ramp edging that connects to the hidden interlocking edge for a simple finishing process.

Cleaning and Maintenance Requirements

Because PVC plastic does not soak up water, customers can clean the tiles in a variety of ways. Start by removing dry debris with a broom, leaf blower, or vacuum cleaner.

For a more thorough cleaning, customers can damp mop the flooring, making use of warm water and common household cleaning products. In a warehouse, customers should be able to run a lightweight floor-cleaning machine over the top. Allow the tiles to air dry over a few hours.


Clean with damp mop, hot water and common household floor cleaner.


Ships in cartons via ground service to your door, for larger orders product may ship freight delivery.

Please review our shipping disclaimer.

WARNING: This product can expose you to chemicals including Lead and/or Phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

In Stock Yes
Product Type Tile
Material Type PVC Plastic
Product Edging Interlocking
Thickness 5.5 mm
Width 1.50 feet
Length 1.50 feet
SF per Item 13.50
Weight 20.40 lbs
Packaging Cartons
Number of Pieces per Package Type 6
Non Absorbent Yes
Special Adhesives No
Universal Interlock No
Interlock Loss 0.00 feet
Material Hardness Shore A 92
Interlocking Connections Yes
Made In Ireland
Surface Finish Slate
Surface Design Solid color
Installation Method Interlocking, dry lay
UV Treated No
Reversible No
Border Strips Included No
Manufacturer Warranty 20 year

Product Questions:

Q: Will this tile work on the exterior concrete decks?
A: This tile is designed as an indoor flooring tile. Maybe go with an exterior grade perforated PVC tile or rubber paver tile.
Q: Thinking about using this in a basement play area. Would this product get punctures and scratches from dog claws?
A: This flooring will not puncture from dog claws. It is also pretty resistant to scratches.
Q: Can this be lay over a garage dirt floor? If not, then what is needed to then lay this tile down?
A: These tiles need a hard, flat surface like concrete or wood.