18 x 18 (hope these are in inches)
18" x 18" is the same as 3/2 feet x 3/2 feet and the area of one tile is 9/4 sq feet.
To fill 160 sq feet you would need (160)/(9/4) = 640/9 = 71.11 tiles and you need to round it up to 72 tiles.
288
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
71 and 1/2 Get 80 to be safe.
To cover 720 sq feet of floor with 18" x 18" tile, you would need 320 tiles.
The answer will depend on the units used for measuring the tiles which you have failed to specify.
288
12...
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
94 (93.33)
144/2.25=64. 18x18 tile cover 2.25 sq ft area.
71 and 1/2 Get 80 to be safe.
To cover 720 sq feet of floor with 18" x 18" tile, you would need 320 tiles.
The answer will depend on the units used for measuring the tiles which you have failed to specify.
18" x 18" = 1.5' x 1.5' = 2.25 square feet90/2.25 = 40 tiles.
71.11 (72) plus 20%
You'll need 200 18-inch tiles.
Depends on how many are in each box?