W27×178 wide-flange beam
Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
W27×178 measures 27 3/4 in. deep with a 14 1/8 in. flange, on a 3/4 in. web and 1 3/16 in. flanges.
At 178 lb per foot it is one of the 17 W27 sizes, which run from 84 to 539 lb/ft.
For strong-axis bending its section modulus is Sx = 505 in³ and its moment of inertia Ix = 7020 in⁴, with a plastic modulus Zx = 570 in³.
Detailing dimensions
| Depth (d) | 27 3/4" |
|---|---|
| Flange width (bf) | 14 1/8" |
| Web thickness (tw) | 3/4" |
| Flange thickness (tf) | 1 3/16" |
| k (detailing) | 2 3/8" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 178 lb/ft |
|---|---|
| Area (A) | 52.5 in² |
| Ix | 7020 in⁴ |
| Sx | 505 in³ |
| Zx | 570 in³ |
| rx | 11.6 in |
| Iy | 555 in⁴ |
| Sy | 78.8 in³ |
| Zy | 122 in³ |
| ry | 3.25 in |
| J | 20.1 in⁴ |
Other W27 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All W27 sizes and dimensions →
Similar weight wide-flange beams
Comparable 178 lb/ft sections in other wide-flange beam sizes.
Compare W27×178 with a nearby size
Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need W27×178 cut, formed, or fabricated? Huntington Steel & Supply Co.
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