convert inches to feet- 1.5- then divide into 800- 533.333333333333~
round up, and you need AT LEAST 534 tiles..
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I do not think that the answer above is correct.
18" by 18" tiles measure 1.5 x 1.5 sq ft = 2.25 sq ft
Then 800 divided by 2.25 = 355.55...(the 5 is recurring) sq ft, so the sensible answer is 356 tiles, but a few more should be added to allow for breakages
You would need 450 tiles
256 tiles
178 tiles
You would need a total of 89 tiles (88.88 tiles exactly) with those measurements to cover that area.
It depends on the size of the tiles and also, to some extent, on the shape of the area that you need to cover.
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
You would need a total of 36 tiles to cover that area.
You will need at least 67 tiles. This will cover 150.75 square feet.
you need a total of 507 tiles to cover this square footage area
350.
You will need 288 tiles at minimum.
55 tiles