W16×50 vs W16×57
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W16×57 is the heavier section at 57 lb per foot, versus 50 for W16×50 (7 lb/ft more).
Both are nominally 16 in. deep.
W16×57 has the greater bending strength: section modulus Sx of 92.2 in³ versus 81, about 14% more.
| Property | W16×50 | W16×57 |
|---|---|---|
| Weight | 50 lb/ft | 57 lb/ft |
| Depth (d) | 16 1/4" | 16 3/8" |
| Flange width (bf) | 7 1/8" | 7 1/8" |
| Web thickness (tw) | 3/8" | 7/16" |
| Flange thickness (tf) | 5/8" | 11/16" |
| Area (A) | 14.7 in² | 16.8 in² |
| Moment of inertia (Ix) | 659 in⁴ | 758 in⁴ |
| Section modulus (Sx) | 81 in³ | 92.2 in³ |
| Plastic modulus (Zx) | 92 in³ | 105 in³ |
Open W16×50 in the interactive size chart →
Full detail: W16×50 · W16×57. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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