W21x122 — Dimensions and Section Properties
Dimensions and key properties
- Weight
- = 122 lb/ft
- A
- = 35.9 in²
- d
- = 21.7 in
- Ix
- = 2,960 in⁴
- Sx
- = 273 in³
- Zx
- = 307 in³
- rx
- = 9.09 in
- ry
- = 2.92 in
Section properties
| Property | Value | Unit |
|---|---|---|
| Weight | 122 | lb/ft |
| A | 35.9 | in² |
| d | 21.7 | in |
| bf | 12.4 | in |
| tf | 0.96 | in |
| tw | 0.6 | in |
| Ix | 2,960 | in⁴ |
| Sx | 273 | in³ |
| Zx | 307 | in³ |
| rx | 9.09 | in |
| Iy | 305 | in⁴ |
| Sy | 49.2 | in³ |
| Zy | 75.6 | in³ |
| ry | 2.92 | in |
Other sizes in the W21 series
Relevant tools
- Steel Shape Properties Table
search and compare W21x122 against other sections
- Beam Shear, Moment and Deflection Diagram Calculator
find the moment this section has to carry, and how far it deflects under load
- ASTM A992
the grade most W-shapes are supplied in