Weatherstripping calculator
Estimate weatherstrip length around rectangular openings.
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Your measurements
Enter your project values. Your estimate updates as you type.
View your estimateExample values are a starting point. Check product yields and specifications before ordering.
YOUR ESTIMATE
Length including waste
22m
Net perimeter20 m
Calculated from your measurements.
How it's calculated
Perimeter = 2 × (length + width) × number of openings. Apply waste.
Calculations use consistent units for your selected measurements. The waste allowance is applied once to the measured requirement. Whole purchase quantities are rounded up.
What this estimate includes
Counts one complete perimeter per opening. Multiple seals require additional runs.
Quantity and arithmetic estimates only. Use project specifications for installation and design requirements.
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