W16x57 is a wide flange steel beam that is 16.4 in deep with a 7.12 in flange and weighs 57 lb/ft (85 kg/m). Its metric designation is W410x85. All values below come from the AISC Shapes Database v16.0.
W16x57 Dimensions
| Property | Symbol | Imperial | Metric |
|---|---|---|---|
| Nominal weight | W | 57 lb/ft | 85 kg/m |
| Cross-sectional area | A | 16.8 in² | 10,800 mm² |
| Depth | d | 16.4 in | 417 mm |
| Flange width | bf | 7.12 in | 181 mm |
| Web thickness | tw | 0.43 in | 10.9 mm |
| Flange thickness | tf | 0.715 in | 18.2 mm |
| Distance to web toe of fillet (design) | kdes | 1.12 in | 28.4 mm |
| Distance to web toe of fillet (detailing) | kdet | 1.375 in | 34.9 mm |
| Web center line to flange toe of fillet | k1 | 0.875 in | 22.2 mm |
| Distance between web toes of fillets | T | 13.625 in | 346 mm |
| Workable gage (inner holes) | WGi | 3.5 in | 88.9 mm |
W16x57 Section Properties
| Property | Symbol | Imperial | Metric |
|---|---|---|---|
| Moment of inertia, x-axis | Ix | 758 in⁴ | 316 ×10⁶ mm⁴ |
| Elastic section modulus, x-axis | Sx | 92.2 in³ | 1,510 ×10³ mm³ |
| Plastic section modulus, x-axis | Zx | 105 in³ | 1,720 ×10³ mm³ |
| Radius of gyration, x-axis | rx | 6.72 in | 171 mm |
| Moment of inertia, y-axis | Iy | 43.1 in⁴ | 17.9 ×10⁶ mm⁴ |
| Elastic section modulus, y-axis | Sy | 12.1 in³ | 198 ×10³ mm³ |
| Plastic section modulus, y-axis | Zy | 18.9 in³ | 310 ×10³ mm³ |
| Radius of gyration, y-axis | ry | 1.6 in | 40.6 mm |
| Torsional constant | J | 2.22 in⁴ | 924 ×10³ mm⁴ |
| Warping constant | Cw | 2,660 in⁶ | 714 ×10⁹ mm⁶ |
| Effective radius of gyration | rts | 1.92 in | 48.8 mm |
| Distance between flange centroids | ho | 15.7 in | 399 mm |
| Flange slenderness | bf/2tf | 4.98 | 4.98 |
| Web slenderness | h/tw | 33 | 33 |
W16x57 Weight Calculator
Enter a length to get the total weight of a W16x57 beam. A 20 ft length weighs 1,140 lb.
Uses the AISC nominal weight: 57 lb/ft (85 kg/m).
Beams Similar to W16x57
| Shape | Weight (lb/ft) | Depth (in) | Flange width (in) |
|---|---|---|---|
| W16x50 | 50 | 16.3 | 7.07 |
| W16x67 | 67 | 16.3 | 10.2 |
| W16x45 | 45 | 16.1 | 7.04 |
See every W16 size in the W16 beam sizes chart, or compare all shapes in the wide flange beam sizes chart. Working in millimetres? W16x57 is listed as W410x85 in the metric wide flange beam sizes chart.
W16x57 FAQ
What does W16x57 mean?
W means wide flange. The first number (16) is the nominal depth in inches, and the second number (57) is the weight in pounds per foot. The actual depth of W16x57 is 16.4 in. How to read steel beam sizes.
How much does a W16x57 beam weigh?
W16x57 weighs 57 lb per foot (85 kg per meter). A 20 ft beam weighs about 1,140 lb. Use the calculator above for any length.
What is the metric equivalent of W16x57?
The metric (SI) designation is W410x85: 417 mm deep with a 181 mm flange and 85 kg/m.
How far can a W16x57 beam span?
Span depends on the load, support conditions, deflection limits and local building code, so it cannot be read from a size table. A licensed structural engineer must size any beam that carries a load.
Source: AISC Shapes Database v16.0, consistent with the AISC Steel Construction Manual, 16th Edition. Last updated: September 2026.
This page is reference information only and is not engineering advice. Do not use it for a specific design without verification by a licensed engineer or architect. Full disclaimer.