Recommended grout · joints 1/16–1/2 in., no sealer needed
ARDEX FL Flexible Grout 25 lb
36 colors
From $42.00 / bag
Choose color
Product specifications
Download Jobsite Flooring spec sheet (PDF)- Material
- Porcelain
- Color
- Black Rock
- Dimensions
- 12 × 12 in.
- Format
- Floor tile
- Pieces per carton
- 14
- Coverage per carton
- 13.56 sq. ft.
- Shade variation
- V4
- PEI rating
- 4
- Water absorption
- < 0.5%
- Breaking strength
- > 250 lbs
- Mohs hardness
- 8
- Frost resistant
- Yes
- Chemical resistance
- Acid and base resistant (excellent)
- DCOF
- > 0.42 (wet)
- Cartons per pallet
- 66
Boulder COLLECTION · JF-11424
Boulder Black Rock
12 × 12 in. · Porcelain
A 12 × 12 in. porcelain floor tile in Boulder Black Rock, with a rugged, cleft slate look. It is rated PEI 4, absorbs under 0.5% water and has a wet DCOF above 0.42, so it can go on kitchen, bath and entry floors.
What it’s used for
- Interior floors and walls
- Kitchens, bathrooms and entryways
- Residential and light commercial floors (PEI 4)
CHOOSE SIZE & FINISH
Each size has its own price and box coverage.
SPECIAL PRICE$1.33 / sq. ft.
13.56 sq. ft. per box · $18.03 per box
Sold by the box. Minimum order: 1 box.
Limited supply
See it in a roomThis color is discontinued and sold while quantities last. Everyone pays the same special price. We confirm the quantity available before you pay, so order enough for the whole job plus extra for cuts and repairs.
See all specialsShips in a week
Recommended grout & setting supplies ↓1 box · 13.56 sq. ft.$18.03
Delivery to Virginia, Washington, D.C., and Maryland. We’ll reach out with a quote that includes shipping after you request an order.
Delivery, cancellations & damage policyCOMPLETE THE INSTALLATION
What else you’ll need
Matched to Boulder Black Rock. Add what fits your job; you can change quantities in the cart.
Grout, mortar & setting supplies
Sanded grout for wider joints up to 3/4 in.
ARDEX FH Sanded Floor & Wall Grout 25 lb
36 colors
From $23.14 / bag
Choose color
Recommended mortar for porcelain and ceramic
ARDEX X 77 Plus Gray High-Yield Tile Mortar 40 lb
40 lb bag
$62.15 / bag
Color-matched to the grout for corners and edges
ARDEX 100% Silicone Caulk
36 colors
From $22.11 / tube
Choose colorMore from Boulder
View collection
SPECIALJF-11425 · 12 × 12 in.
Boulder Pebble
$1.33 / sq. ft.
12 × 12 in. · special price
13.56 sq. ft. / box · Sold by the box
Limited supply · while quantities last