W6×16 vs W12×16
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W6×16 and W12×16 both weigh 16 lb per foot, so the choice comes down to depth and stiffness rather than weight.
W12×16 is the deeper section at a nominal 12 in., versus 6 in.
W12×16 has the greater bending strength: section modulus Sx of 17.1 in³ versus 10.2, about 68% more.
| Property | W6×16 | W12×16 |
|---|---|---|
| Weight | 16 lb/ft | 16 lb/ft |
| Depth (d) | 6 1/4" | 12" |
| Flange width (bf) | 4" | 4" |
| Web thickness (tw) | 1/4" | 1/4" |
| Flange thickness (tf) | 3/8" | 1/4" |
| Area (A) | 4.74 in² | 4.71 in² |
| Moment of inertia (Ix) | 32.1 in⁴ | 103 in⁴ |
| Section modulus (Sx) | 10.2 in³ | 17.1 in³ |
| Plastic modulus (Zx) | 11.7 in³ | 20.1 in³ |
Open W6×16 in the interactive size chart →
Full detail: W6×16 · W12×16. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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