Window trim calculator
Estimate trim around rectangular window 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
Includes all four sides of each opening. Add mitre and cutting waste; subtract any untrimmed edges separately.
Quantity and arithmetic estimates only. Use project specifications for installation and design requirements.
IN THIS TRADE