Free structural engineering calculators
Quick answers to everyday structural problems: how far a beam deflects, how big the moment is, and what the moment of inertia of a shape is. Online since 2006, free, and no sign-up.
Calculators
Beam calculator
Deflection, slope, moment and shear diagrams for 9 simply supported and 8 cantilever load cases, with the formulas.
Open the beam calculator →Cross section calculator
Area, centroid, moments of inertia, section modulus and radius of gyration for rectangles, triangles, circles, pipes and I, T, L and C shapes.
Open the cross section calculator →Design tools on WebStructural
When you need to size a member and check it against the building code, these tools from WebStructural take it from there.
Steel and wood beam designer
Pick AISC steel shapes or sawn and engineered lumber, combine load cases, and check bending, shear and deflection.
webstructural.com →Shear and moment diagrams
Continuous beams, overhangs and any mix of point, distributed and moment loads.
webstructural.com →Steel and wood column designer
Steel W, HSS and pipe columns to AISC 360 and wood posts, glulam, LVL and PSL to the NDS, under axial load and bending.
webstructural.com →Concrete footing designer
Column, post and wall footings: soil pressure, uplift, overturning, sliding, bars, and one-way and punching shear to ACI 318.
webstructural.com →Anchor bolt designer
Anchor bolts in tension and shear, with embedment depth and edge distance checks to ACI 318.
webstructural.com →Wood framing calculators
Joist, rafter and header spans, deck framing, stud walls, shear walls and retaining walls.
webstructural.com →