W5×19 vs W10×19
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W5×19 and W10×19 both weigh 19 lb per foot, so the choice comes down to depth and stiffness rather than weight.
W10×19 is the deeper section at a nominal 10 in., versus 5 in.
W10×19 has the greater bending strength: section modulus Sx of 18.8 in³ versus 10.2, about 84% more.
| Property | W5×19 | W10×19 |
|---|---|---|
| Weight | 19 lb/ft | 19 lb/ft |
| Depth (d) | 5 1/8" | 10 1/4" |
| Flange width (bf) | 5" | 4" |
| Web thickness (tw) | 1/4" | 1/4" |
| Flange thickness (tf) | 7/16" | 3/8" |
| Area (A) | 5.56 in² | 5.62 in² |
| Moment of inertia (Ix) | 26.3 in⁴ | 96.3 in⁴ |
| Section modulus (Sx) | 10.2 in³ | 18.8 in³ |
| Plastic modulus (Zx) | 11.6 in³ | 21.6 in³ |
Open W5×19 in the interactive size chart →
Full detail: W5×19 · W10×19. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
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