100 + 3%waste for cuts = 103.
256 tiles
221 of them. Get extra for breakage.
144
204 tiles.
There are 12 inches in 1 foot so each tile is 1x1 ft. This means nine tiles will fit along nine ft and twelve tiles will fit along twelve ft The area of this would be 9x12 Which is 108 In conclusion 108 12x12 in tiles will cover 9x12 ft
6 tiles that are 12 ft x 12 ft should be enough.
If your tiles are 12 inches by 12 inches they are equal to 1 sq ft, so you would need 54 tiles.
54 in ge
If the tiles are 12 inches square... 8352 tiles ! However if they're 12 feet square... 58 tiles
12" x 12" = 1 ft x 1 ft = 1 square foot 220 tiles to cover 220 square feet
40