How many square yards of wallpaper are needed to cover a 24ft by18 ft by 9 ft room?

Answer 1

There are (exactly) 3 feet per yard; therefore, the dimension of the room are 8 yd X 6 yd X 3 yd. Wall paper is not customarily used on the ceiling or floor of a room. Therefore, assuming that 3 yd is the height, the area to be covered by wallpaper is

2(6 X 3) + 2(8 X 3) = 84 square yards. The ceiling or floor would take an additional 6 X 8 = 48 square yards each if they are also to be covered.