How is carpet measured?

Carpet is sold by the square yard. Multiply room length × width in feet, divide by 9, and add about 10% for waste and seams.

Why is carpet sold in 12-foot widths?

Most broadloom carpet comes in 12 ft rolls, so room layout affects how much you waste at seams.

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How is carpet measured?: Carpet is sold by the square yard. Multiply room length × width in feet, divide by 9, and add about 10% for waste and seams.
Why is carpet sold in 12-foot widths?: Most broadloom carpet comes in 12 ft rolls, so room layout affects how much you waste at seams.