W21x166 — Dimensions and Section Properties
Dimensions and key properties
- Weight
- = 166 lb/ft
- A
- = 48.8 in²
- d
- = 22.5 in
- Ix
- = 4,280 in⁴
- Sx
- = 380 in³
- Zx
- = 432 in³
- rx
- = 9.36 in
- ry
- = 2.99 in
Section properties
| Property | Value | Unit |
|---|---|---|
| Weight | 166 | lb/ft |
| A | 48.8 | in² |
| d | 22.5 | in |
| bf | 12.4 | in |
| tf | 1.36 | in |
| tw | 0.75 | in |
| Ix | 4,280 | in⁴ |
| Sx | 380 | in³ |
| Zx | 432 | in³ |
| rx | 9.36 | in |
| Iy | 435 | in⁴ |
| Sy | 70 | in³ |
| Zy | 108 | in³ |
| ry | 2.99 | in |
Other sizes in the W21 series
Relevant tools
- Steel Shape Properties Table
search and compare W21x166 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