W40×324 vs W40×327
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W40×327 is the heavier section at 327 lb per foot, versus 324 for W40×324 (3 lb/ft more).
Both are nominally 40 in. deep.
W40×324 has the greater bending strength: section modulus Sx of 1280 in³ versus 1200, about 7% more.
| Property | W40×324 | W40×327 |
|---|---|---|
| Weight | 324 lb/ft | 327 lb/ft |
| Depth (d) | 40 1/8" | 40 3/4" |
| Flange width (bf) | 15 7/8" | 12 1/8" |
| Web thickness (tw) | 1" | 1 3/16" |
| Flange thickness (tf) | 1 13/16" | 2 1/8" |
| Area (A) | 95.3 in² | 95.9 in² |
| Moment of inertia (Ix) | 25600 in⁴ | 24500 in⁴ |
| Section modulus (Sx) | 1280 in³ | 1200 in³ |
| Plastic modulus (Zx) | 1460 in³ | 1410 in³ |
Open W40×324 in the interactive size chart →
Full detail: W40×324 · W40×327. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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