W21×182 vs W21×201
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W21×201 is the heavier section at 201 lb per foot, versus 182 for W21×182 (19 lb/ft more).
Both are nominally 21 in. deep.
W21×201 has the greater bending strength: section modulus Sx of 461 in³ versus 417, about 11% more.
| Property | W21×182 | W21×201 |
|---|---|---|
| Weight | 182 lb/ft | 201 lb/ft |
| Depth (d) | 22 3/4" | 23" |
| Flange width (bf) | 12 1/2" | 12 5/8" |
| Web thickness (tw) | 13/16" | 15/16" |
| Flange thickness (tf) | 1 1/2" | 1 5/8" |
| Area (A) | 53.6 in² | 59.3 in² |
| Moment of inertia (Ix) | 4730 in⁴ | 5310 in⁴ |
| Section modulus (Sx) | 417 in³ | 461 in³ |
| Plastic modulus (Zx) | 476 in³ | 530 in³ |
Open W21×182 in the interactive size chart →
Full detail: W21×182 · W21×201. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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