🔨 Beam Deflection Calculator
Max deflection, slope, and reaction forces for common beam configurations
↓ P (center) | △▽━━━━━━━━━━━━━━━━━━━△▽ |←———————— L ————————→| Simply Supported, Center Point Load
Results
Max Deflection
—
in
Max Moment
—
kip·ft
Max Shear
—
kip
Deflection / Span
—
L/N (L/360 limit)
Formula Reference
Simply Supported, Center Load: δ = PL³ / (48EI)
Simply Supported, UDL: δ = 5wL&sup4; / (384EI)
Cantilever, End Load: δ = PL³ / (3EI)
Cantilever, UDL: δ = wL&sup4; / (8EI)
Typical deflection limits: L/360 (live load floors), L/240 (roof), L/180 (cantilevers)