Roof Truss Calculator — Free Online Tool
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Roof Truss Calculator

Calculate roof truss quantity, spacing, rise, and chord length

Truss Standard: Total number of trusses is calculated as $\left(\frac{\text{Building Length}}{\text{Truss Spacing}}\right) + 1$. Standard residential truss spacing is typically 24 inches (2 feet) on center.
Building Dimensions & Pitch

Calculation Results

⚠️ Roof truss calculations provide structural material estimates. Always consult a certified structural engineer and truss manufacturer for load calculations, wind ratings, and local building codes.

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