W27×307 vs W27×336
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W27×336 is the heavier section at 336 lb per foot, versus 307 for W27×307 (29 lb/ft more).
Both are nominally 27 in. deep.
W27×336 has the greater bending strength: section modulus Sx of 972 in³ versus 887, about 10% more.
| Property | W27×307 | W27×336 |
|---|---|---|
| Weight | 307 lb/ft | 336 lb/ft |
| Depth (d) | 29 5/8" | 30" |
| Flange width (bf) | 14 1/2" | 14 1/2" |
| Web thickness (tw) | 1 3/16" | 1 1/4" |
| Flange thickness (tf) | 2 1/16" | 2 1/4" |
| Area (A) | 90.2 in² | 99.2 in² |
| Moment of inertia (Ix) | 13100 in⁴ | 14600 in⁴ |
| Section modulus (Sx) | 887 in³ | 972 in³ |
| Plastic modulus (Zx) | 1030 in³ | 1130 in³ |
Open W27×307 in the interactive size chart →
Full detail: W27×307 · W27×336. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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