W12×336 vs W27×336
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W12×336 and W27×336 both weigh 336 lb per foot, so the choice comes down to depth and stiffness rather than weight.
W27×336 is the deeper section at a nominal 27 in., versus 12 in.
W27×336 has the greater bending strength: section modulus Sx of 972 in³ versus 483, about 101% more.
| Property | W12×336 | W27×336 |
|---|---|---|
| Weight | 336 lb/ft | 336 lb/ft |
| Depth (d) | 16 7/8" | 30" |
| Flange width (bf) | 13 3/8" | 14 1/2" |
| Web thickness (tw) | 1 3/4" | 1 1/4" |
| Flange thickness (tf) | 2 15/16" | 2 1/4" |
| Area (A) | 98.9 in² | 99.2 in² |
| Moment of inertia (Ix) | 4060 in⁴ | 14600 in⁴ |
| Section modulus (Sx) | 483 in³ | 972 in³ |
| Plastic modulus (Zx) | 603 in³ | 1130 in³ |
Open W12×336 in the interactive size chart →
Full detail: W12×336 · W27×336. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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