67 tiles.
3
288
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
18x18 what? 18 feet x 18 feet? 18 microns x 18 microns?
67 tiles.
start with 38 tiles.
3
288
118
192 tiles
30 tiles! But you'll need more than 30 tiles to cover wastage, breakage, etc.
12...
94 (93.33)
144/2.25=64. 18x18 tile cover 2.25 sq ft area.
18x18 what? 18 feet x 18 feet? 18 microns x 18 microns?
71 and 1/2 Get 80 to be safe.