RHS — Rectangular Hollow Sections
Cross-section properties of hot-finished rectangular hollow sections
| h | — | Overall depth |
| b | — | Overall width |
| t | — | Wall thickness |
| ro | — | Outer corner radius |
| G | — | Mass per unit length |
| A | — | Cross-section area |
| Iy | — | Second moment of area about y-axis |
| Iz | — | Second moment of area about z-axis |
| iy | — | Radius of gyration about y-axis |
| iz | — | Radius of gyration about z-axis |
| Wy | — | Elastic section modulus about y-axis |
| Wpl,y | — | Plastic section modulus about y-axis |
| Wz | — | Elastic section modulus about z-axis |
| Wpl,z | — | Plastic section modulus about z-axis |
| Ay | — | Shear area parallel to y-axis |
| Az | — | Shear area parallel to z-axis |
| It | — | Torsion constant |
| Wt | — | Torsion section modulus |
| Am | — | Surface area per unit length |