How many rolls will I need?

Question

If my wall is 10 ft x 12 ft and the wallpaper roll is 15.7” x 118”, how many rolls will I need?

Answer 1

15.7 times 118 = 1,852.6 in^2

there are 12 inches in a foot

and 12x12 = 144 in^2 in a square foot

10 by 12 = 120 ft^2 = 120 x 144 = 17,280 in^2

17,280/1,852.6 = about 9.33 rolls

you'll need 10 rolls

or divide 1852.6 by 144 to get about 12.9 ft^2

120/12.9 = about 9.3 rolls.

if you can't buy fractions of a roll, you'll need 10 rolls