How Many Tiles for 150 Square Feet?

150 square feet needs 162 tiles if they are 12 × 12 in with 1/8 in joints and 10% waste. Smaller tiles need many more, as the table shows, along with grout and thinset.

Your project

%

10% is standard. Use 15% for diagonal layouts or large-format tile.

tiles

Printed on the box.

Coverage of a 50 lb bag in ft².

Results

Tiles needed
162 tiles
Includes your waste allowance
Boxes
17 boxes
Area to tile
150.0 ft²

Thinset mortar

50 lb bags of thinset
3 bags

Grout

Grout
11.7 lb
25 lb bags
1 bags
10 lb bags
2 bags
  • Grout is estimated from joint volume plus 20% for waste, uneven tile backs and clean-up. Thinset coverage varies with the trowel, the tile back and the substrate, so check the bag. Large tiles may need back-buttering, which uses more.

Tiles for 150 square feet, by tile size

Counts include 10% waste. Grout includes 20% for waste and uneven backs. Thinset is in 50 lb bags at the notch size usual for that tile.

TileJointTiles neededGroutThinset bags
3 × 6 in subway1/16 in128011.7 lb2
4 × 4 in1/8 in139723.5 lb2
6 × 6 in1/8 in63423.5 lb2
12 × 12 in1/8 in16211.7 lb3
12 × 24 in1/8 in828.8 lb3
24 × 24 in3/16 in4111.7 lb4

Planning the job

Buy all your tile at once from one lot, and add 15% for a diagonal layout or large-format tile. Check the floor is flat before laying big tiles. See the tile, grout and thinset guide for the full method.

Want to change anything else? The calculator above is the full Tile Calculator: edit any number and the results update instantly.

Tools & materials for this project

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Frequently asked questions

How many 12x12 tiles for 150 square feet?

162 tiles with 1/8 in joints and 10% waste, which is 17 boxes of 10.

How many tiles for 150 square feet?

It depends on tile size: 162 of 12 × 12 in, 41 of 24 × 24 in, 634 of 6 × 6 in, or 1280 of 3 × 6 in subway tile, with 10% waste.

How much grout for 150 square feet?

About 11.7 lb for 12 × 12 in tiles (1/8 in joints), but 47 lb or more for 2 × 2 in mosaics. Smaller tiles mean far more grout.

Related sizes and guides

Estimates only. Results assume standard materials and simple shapes. Supplier products vary, and the final call on quantity, structure and safety is yours. Check your local code and your supplier's guidance before ordering.