W14×38 vs W14×43
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W14×43 is the heavier section at 43 lb per foot, versus 38 for W14×38 (5 lb/ft more).
Both are nominally 14 in. deep.
W14×43 has the greater bending strength: section modulus Sx of 62.6 in³ versus 54.6, about 15% more.
| Property | W14×38 | W14×43 |
|---|---|---|
| Weight | 38 lb/ft | 43 lb/ft |
| Depth (d) | 14 1/8" | 13 5/8" |
| Flange width (bf) | 6 3/4" | 8" |
| Web thickness (tw) | 5/16" | 5/16" |
| Flange thickness (tf) | 1/2" | 1/2" |
| Area (A) | 11.2 in² | 12.6 in² |
| Moment of inertia (Ix) | 385 in⁴ | 428 in⁴ |
| Section modulus (Sx) | 54.6 in³ | 62.6 in³ |
| Plastic modulus (Zx) | 61.5 in³ | 69.6 in³ |
Open W14×38 in the interactive size chart →
Full detail: W14×38 · W14×43. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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