The answer will depend on the size of the tiles. Since there are no units given, the fact that the tiles are 18*18 is useless for answering the question.
Chat with our AI personalities
157 18 by 18 tiles are needed to cover 352 square feet.
To cover 720 sq feet of floor with 18" x 18" tile, you would need 320 tiles.
You will need at least 67 tiles. This will cover 150.75 square feet.
18*18 = 324 tiles.
18..