W12×170 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.
W12×170 measures 14 in. deep with a 12 5/8 in. flange, on a 15/16 in. web and 1 9/16 in. flanges.
At 170 lb per foot it is one of the 29 W12 sizes, which run from 14 to 336 lb/ft.
For strong-axis bending its section modulus is Sx = 235 in³ and its moment of inertia Ix = 1650 in⁴, with a plastic modulus Zx = 275 in³.
Detailing dimensions
| Depth (d) | 14" |
|---|---|
| Flange width (bf) | 12 5/8" |
| Web thickness (tw) | 15/16" |
| Flange thickness (tf) | 1 9/16" |
| k (detailing) | 2 7/16" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 170 lb/ft |
|---|---|
| Area (A) | 50 in² |
| Ix | 1650 in⁴ |
| Sx | 235 in³ |
| Zx | 275 in³ |
| rx | 5.74 in |
| Iy | 517 in⁴ |
| Sy | 82.3 in³ |
| Zy | 126 in³ |
| ry | 3.22 in |
| J | 35.6 in⁴ |
Other W12 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
All W12 sizes and dimensions →
Similar weight wide-flange beams
Comparable 170 lb/ft sections in other wide-flange beam sizes.
Compare W12×170 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 W12×170 cut, formed, or fabricated? Huntington Steel & Supply Co.
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