Square Footage Calculator
Measure square footage of rooms and irregular spaces.
Square footage
180 sq ft
Square yards
20
Square meters
16.72
With 10% waste
198 sq ft
Measuring rooms that aren't rectangles
Split L-shaped or irregular rooms into rectangles, measure each, and sum — closets and alcoves included if they get the same flooring. Measure at the floor, not the baseboard, and take each wall twice; houses are rarely square.
Ordering materials
Flooring, tile, and carpet orders add a waste factor for cuts and breakage: 10% for straight lays, 15%+ for diagonal patterns or many corners. Carpet pricing per square yard means dividing square feet by 9 — a frequent checkout surprise.
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