Carpet Yardage Formula:
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The Carpet Square Yard Calculator helps determine how much carpet you need for a room by converting square footage to square yards and adding a waste allowance. This ensures you purchase enough carpet for proper installation.
The calculator uses the following formula:
Where:
Explanation: The formula first converts square feet to square yards (dividing by 9) then adds the waste allowance you specify.
Details: Proper carpet calculation prevents costly mistakes - buying too much wastes money, while buying too little can delay projects and create visible seams.
Tips: Measure room dimensions carefully in feet, multiply length × width for area. Typical waste allowance is 10-20% (0.1-0.2 sq yards per sq yard needed).
Q1: Why divide by 9 in the formula?
A: There are 9 square feet in 1 square yard, so dividing by 9 converts square footage to square yards.
Q2: How much waste should I allow?
A: Typically 10-20% extra. More for complex rooms or patterned carpet, less for simple rectangular rooms.
Q3: Should I round up the final amount?
A: Yes, carpet is usually sold by the whole or half yard, so round up to nearest 0.5 yards.
Q4: Does this work for multiple rooms?
A: Yes, add all room areas together before calculating, or calculate each separately and sum the results.
Q5: What about carpet rolls?
A: Standard rolls are 12 feet wide. Your calculation helps determine how many linear feet you'll need.