W40×149 vs W40×167
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W40×167 is the heavier section at 167 lb per foot, versus 149 for W40×149 (18 lb/ft more).
Both are nominally 40 in. deep.
W40×167 has the greater bending strength: section modulus Sx of 600 in³ versus 513, about 17% more.
| Property | W40×149 | W40×167 |
|---|---|---|
| Weight | 149 lb/ft | 167 lb/ft |
| Depth (d) | 38 1/4" | 38 5/8" |
| Flange width (bf) | 11 3/4" | 11 3/4" |
| Web thickness (tw) | 5/8" | 5/8" |
| Flange thickness (tf) | 13/16" | 1" |
| Area (A) | 43.8 in² | 49.3 in² |
| Moment of inertia (Ix) | 9800 in⁴ | 11600 in⁴ |
| Section modulus (Sx) | 513 in³ | 600 in³ |
| Plastic modulus (Zx) | 598 in³ | 693 in³ |
Open W40×149 in the interactive size chart →
Full detail: W40×149 · W40×167. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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