Flashing lengths calculator
Estimate stock flashing lengths.
01
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
Stock lengths to buy
3
Total length with waste6.6 m
Net length6 m
Whole quantities are rounded up.
How it's calculated
Required length = length per run × runs × (1 + waste ÷ 100). Stock count = required length ÷ stock length, rounded up.
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
Include laps, corners and turn-ups in measured length or allowance. Profile width is not calculated.
Quantity and arithmetic estimates only. Use project specifications for installation and design requirements.
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