W21×201 vs W21×223
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W21×223 is the heavier section at 223 lb per foot, versus 201 for W21×201 (22 lb/ft more).
Both are nominally 21 in. deep.
W21×223 has the greater bending strength: section modulus Sx of 520 in³ versus 461, about 13% more.
| Property | W21×201 | W21×223 |
|---|---|---|
| Weight | 201 lb/ft | 223 lb/ft |
| Depth (d) | 23" | 23 3/8" |
| Flange width (bf) | 12 5/8" | 12 5/8" |
| Web thickness (tw) | 15/16" | 1" |
| Flange thickness (tf) | 1 5/8" | 1 13/16" |
| Area (A) | 59.3 in² | 66.5 in² |
| Moment of inertia (Ix) | 5310 in⁴ | 6080 in⁴ |
| Section modulus (Sx) | 461 in³ | 520 in³ |
| Plastic modulus (Zx) | 530 in³ | 601 in³ |
Open W21×201 in the interactive size chart →
Full detail: W21×201 · W21×223. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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