360 tiles.
12 tiles by 18 tiles or 216 tiles total
It would be 9 tiles wide by 12 tiles long. That gives you a total of 108 tiles.
225 16-inch tiles.
875 24-inch tiles.
A 24x24 inch tile would be four square feet. 140 divided by 4 would be 35 tiles.
A minimum of 33 tiles, a maximum of 40.
113 tiles
54 4x4-inch tiles.
56 tiles to cover 224 square feet.
23 tiles if you want to add for waste it would be 26.
1121/2 16x16-inch tiles.
55 tiles