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About This Section Properties Calculator
Calculate moment of inertia, section modulus, radius of gyration, and other geometric properties for standard cross-sections and AISC steel shapes. Free, instant results with interactive cross-section visualization.
Supported Shapes
- Rectangle — solid rectangular cross-section
- Hollow Rectangle (Box/Tube) — rectangular hollow section
- Circle — solid circular cross-section
- Hollow Circle (Pipe) — circular hollow section
- I-Beam (Wide Flange) — symmetric I-shaped section
- Channel (C) — C-shaped channel section
- Angle (L) — equal or unequal leg angle
- T-Section — tee-shaped cross-section
AISC Steel Shape Database
Built-in lookup for common AISC steel shapes including W (wide flange), HSS (hollow structural sections), and more. Select a shape from the database to instantly view all section properties per AISC Steel Construction Manual.
Properties Calculated
- A — Cross-sectional area
- Ix, Iy — Moment of inertia about strong and weak axes
- Sx, Sy — Elastic section modulus
- Zx, Zy — Plastic section modulus
- rx, ry — Radius of gyration
- J — Torsional constant
- Cw — Warping constant (I-beams)
Quick Design Check
Enter an applied moment and yield stress to get an instant bending stress check with demand/capacity ratio. Perfect for preliminary sizing before running a full beam analysis.
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