How many 9 inch square floor tiles are needed to cover a rectangular floor that measures 144 inches by 180 inches?

Answer 2880 exactly, but if this is ceramic tiles you have to account for grout lines. extras would be recommended

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How many 8-by-8-inch floor tiles will cover 400 square feet?

An 8-inch-by-8-inch square is equal to .444 square feet. So, to figure out how many of these tiles fit into a 400-square-foot space, divide 400 by .444. You will find that 900 8-inch-by-8-inch tile... Read More »

How many 16x16 inch floor tiles are needed to cover 254 sq feet?

16" x 16" means 1.3333' x 1.3333' which is 1.7777 sq feet 254sq feet / 1.777 = 143 Pcs. Regards Sami N.

How many 18 x 18 tiles to cover 440 square foot floor?

It depends on whether the tiles are 18 cm * 18 cm, or 18 in * 18 in or any other units of linear measurement which the question does not specify.

How many square feet are there in a room that measures 18 feet 1 inch by 13 feet 7 inches?