W33×221 vs W33×241
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W33×241 is the heavier section at 241 lb per foot, versus 221 for W33×221 (20 lb/ft more).
Both are nominally 33 in. deep.
W33×241 has the greater bending strength: section modulus Sx of 831 in³ versus 759, about 9% more.
| Property | W33×221 | W33×241 |
|---|---|---|
| Weight | 221 lb/ft | 241 lb/ft |
| Depth (d) | 33 7/8" | 34 1/8" |
| Flange width (bf) | 15 3/4" | 15 7/8" |
| Web thickness (tw) | 3/4" | 13/16" |
| Flange thickness (tf) | 1 1/4" | 1 3/8" |
| Area (A) | 65.3 in² | 71.1 in² |
| Moment of inertia (Ix) | 12900 in⁴ | 14200 in⁴ |
| Section modulus (Sx) | 759 in³ | 831 in³ |
| Plastic modulus (Zx) | 857 in³ | 940 in³ |
Open W33×221 in the interactive size chart →
Full detail: W33×221 · W33×241. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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