Estimate how much weatherstripping to buy to seal doors or windows. Enter the size and quantity to get the linear feet, door sweeps, and optional material cost.
Weatherstripping to Buy
— ft
Perimeter strip with a 10% waste allowance.Usage Tip
Clean and dry the surfaces before applying adhesive-backed weatherstrip, and replace compressed or cracked strip rather than layering over it. Buy one continuous roll per opening where you can to avoid seams.
THE MATH
Door perimeter strip = 2 × Height + Width (top and both sides)
Window perimeter = 2 × (Width + Height)
Buy = total × 1.10, rounded up (10% waste)
Window perimeter = 2 × (Width + Height)
Buy = total × 1.10, rounded up (10% waste)
Doors get weatherstrip on the top and two sides; the bottom is sealed with a separate door sweep, so the bottom is not counted in the perimeter strip.
Windows are sealed around the full perimeter.
Windows are sealed around the full perimeter.
Linear feet are based on the opening size you enter; measure the actual jamb if it differs.
Compression strip (V-strip, foam, or kerf-in) and the door sweep are sold separately — this counts the strip length and the number of sweeps.
Add a little extra for trimming and corners; the 10% waste allowance covers typical offcuts.
Compression strip (V-strip, foam, or kerf-in) and the door sweep are sold separately — this counts the strip length and the number of sweeps.
Add a little extra for trimming and corners; the 10% waste allowance covers typical offcuts.