Beam Deflection Calculator — Free Online Tool
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Beam Deflection Calculator

Calculate maximum deflection and bending moment for simply supported beams

Formula (Simply Supported Beam with UDL):
• Max Deflection (δ) = 5wL4 / (384EI)
• Max Bending Moment (M) = wL2 / 8
Beam & Load Parameters

Calculation Results

⚠️ Beam deflection estimates are theoretical values based on linear elastic material behavior. Always verify structural sizing and live load deflections against local building codes (e.g., L/360 or L/240 limits).

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