calcs.homes
calcs.homes
Enter your room size and the carpet roll width to get the square yards to order, how many linear feet come off a roll, and a rough installed cost.
Estimate only — an installer's seam plan on a real room may need more than the raw area suggests.
Carpet is milled on rolls 12 feet wide (some 13.5 or 15), so an installer lays full-width pieces and seams them. We take the floor area, add a waste allowance for seam alignment and pattern match, convert to square yards — the unit carpet is priced in — and also show the linear feet that comes off the roll. Cost multiplies square yards by your carpet and install rates.
A plain rectangular room close to or under the roll width wastes little. Long hallways, L-shaped rooms, and rooms wider than the roll force cross-seams and extra drops, which is why an installer's measure often exceeds the bare floor area by more than 10%. Get their seam diagram before ordering.
The trade has priced carpet per square yard for decades because rolls are milled in yard-based widths. One square yard is 9 square feet, so divide your area in square feet by 9.
12 feet is by far the most common. Some styles also come in 13-foot-6 or 15-foot widths, which can cut seams in a wide room.
About 10% for a simple room. Add more for a room wider than the roll, an L-shape, stairs, or a bold pattern that has to line up across seams.