Expert Guide
Wood & Timber
Window Frame Volume Calculator
Quality Inspector
Estimate timber required for window frames based on outer dimensions and number of internal members.
📐 Formula & Method
Total Length = (2+Verticals)×Height + (2+Horizontals)×Width. Volume = Length × Section Area × Qty.
Volume = TotalLength × w × t × Qty
📋 Worked Example
4ft x 5ft window with 1 vertical bar: • Length = (2+1)×4 + 2×5 = 22ft • Volume based on section area.
❓ Frequently Asked Questions
Standard window frames have 2 verticals and 2 horizontals forming the outer box. Verticals/Horizontals in the inputs refer to EXTRA members inside this box.
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