W30×116 vs W30×124
A side-by-side comparison of two AISC wide-flange beams, 16th Edition. Detailing dimensions to the nearest 1/16 in.
W30×124 is the heavier section at 124 lb per foot, versus 116 for W30×116 (8 lb/ft more).
Both are nominally 30 in. deep.
W30×124 has the greater bending strength: section modulus Sx of 355 in³ versus 329, about 8% more.
| Property | W30×116 | W30×124 |
|---|---|---|
| Weight | 116 lb/ft | 124 lb/ft |
| Depth (d) | 30" | 30 1/8" |
| Flange width (bf) | 10 1/2" | 10 1/2" |
| Web thickness (tw) | 9/16" | 9/16" |
| Flange thickness (tf) | 7/8" | 15/16" |
| Area (A) | 34.2 in² | 36.5 in² |
| Moment of inertia (Ix) | 4930 in⁴ | 5360 in⁴ |
| Section modulus (Sx) | 329 in³ | 355 in³ |
| Plastic modulus (Zx) | 378 in³ | 408 in³ |
Open W30×116 in the interactive size chart →
Full detail: W30×116 · W30×124. Verify critical dimensions against the current AISC Steel Construction Manual before fabrication.
Browse more: size comparisons · Steel Beam Size Chart