W27×258 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.
W27×258 measures 29 in. deep with a 14 1/4 in. flange, on a 1 in. web and 1 3/4 in. flanges.
At 258 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 = 745 in³ and its moment of inertia Ix = 10800 in⁴, with a plastic modulus Zx = 852 in³.
Detailing dimensions
| Depth (d) | 29" |
|---|---|
| Flange width (bf) | 14 1/4" |
| Web thickness (tw) | 1" |
| Flange thickness (tf) | 1 3/4" |
| k (detailing) | 3" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 258 lb/ft |
|---|---|
| Area (A) | 76.1 in² |
| Ix | 10800 in⁴ |
| Sx | 745 in³ |
| Zx | 852 in³ |
| rx | 11.9 in |
| Iy | 859 in⁴ |
| Sy | 120 in³ |
| Zy | 187 in³ |
| ry | 3.36 in |
| J | 61.6 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 258 lb/ft sections in other wide-flange beam sizes.
Compare W27×258 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 W27×258 cut, formed, or fabricated? Huntington Steel & Supply Co.
Browse more: Wide flange beams · Steel Beam Size Chart