W36×330 vs W36×350
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W36×350 is the heavier section at 350 lb per foot, versus 330 for W36×330 (20 lb/ft more).
Both are nominally 36 in. deep.
W36×330 has the greater bending strength: section modulus Sx of 1240 in³ versus 1220, about 2% more.
| Property | W36×330 | W36×350 |
|---|---|---|
| Weight | 330 lb/ft | 350 lb/ft |
| Depth (d) | 37 5/8" | 38 5/8" |
| Flange width (bf) | 16 5/8" | 12 5/8" |
| Web thickness (tw) | 1" | 1 5/16" |
| Flange thickness (tf) | 1 7/8" | 2 5/16" |
| Area (A) | 96.9 in² | 103 in² |
| Moment of inertia (Ix) | 23300 in⁴ | 23600 in⁴ |
| Section modulus (Sx) | 1240 in³ | 1220 in³ |
| Plastic modulus (Zx) | 1410 in³ | 1440 in³ |
Open W36×330 in the interactive size chart →
Full detail: W36×330 · W36×350. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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