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Beam Deflection Calculator

Find maximum deflection, bending moment, shear force and bending stress for common beam and loading cases.

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Max Deflection

⚠️ These are standard elastic beam formulas for preliminary sizing only. They assume a straight, prismatic, homogeneous beam loaded within its elastic range, and ignore self-weight, buckling, shear deflection and stress concentrations. Have any load-bearing design checked by a qualified engineer.