144
1
1/144 of square foot
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
188 will cover it. Bring extra.
144
18..
13-ft x 16-ft = 208 square feet
To cover this area you will need about 10.87 square meters of material.
17 and one-third.
A minimum of 121 square feet. Just multiply length by width - the answer is the square footage.
A 19' x 15' room is 285 square feet or 26.477 square meters.