W14×257 vs W14×283
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W14×283 is the heavier section at 283 lb per foot, versus 257 for W14×257 (26 lb/ft more).
Both are nominally 14 in. deep.
W14×283 has the greater bending strength: section modulus Sx of 459 in³ versus 415, about 11% more.
| Property | W14×257 | W14×283 |
|---|---|---|
| Weight | 257 lb/ft | 283 lb/ft |
| Depth (d) | 16 3/8" | 16 3/4" |
| Flange width (bf) | 16" | 16 1/8" |
| Web thickness (tw) | 1 3/16" | 1 5/16" |
| Flange thickness (tf) | 1 7/8" | 2 1/16" |
| Area (A) | 75.6 in² | 83.3 in² |
| Moment of inertia (Ix) | 3400 in⁴ | 3840 in⁴ |
| Section modulus (Sx) | 415 in³ | 459 in³ |
| Plastic modulus (Zx) | 487 in³ | 542 in³ |
Open W14×257 in the interactive size chart →
Full detail: W14×257 · W14×283. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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