W27×368 vs W27×539
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W27×539 is the heavier section at 539 lb per foot, versus 368 for W27×368 (171 lb/ft more).
Both are nominally 27 in. deep.
W27×539 has the greater bending strength: section modulus Sx of 1570 in³ versus 1060, about 48% more.
| Property | W27×368 | W27×539 |
|---|---|---|
| Weight | 368 lb/ft | 539 lb/ft |
| Depth (d) | 30 3/8" | 32 1/2" |
| Flange width (bf) | 14 5/8" | 15 1/4" |
| Web thickness (tw) | 1 3/8" | 2" |
| Flange thickness (tf) | 2 1/2" | 3 9/16" |
| Area (A) | 109 in² | 159 in² |
| Moment of inertia (Ix) | 16200 in⁴ | 25600 in⁴ |
| Section modulus (Sx) | 1060 in³ | 1570 in³ |
| Plastic modulus (Zx) | 1240 in³ | 1890 in³ |
Open W27×368 in the interactive size chart →
Full detail: W27×368 · W27×539. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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