W40x167 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W40x167 is an American wide-flange beam 38.6 inches (980.4 mm) deep with a 11.8 in (299.7 mm) flange, weighing 167 pounds per foot (248.5 kg/m) — that is what the "167" in the designation means. All values below are the standard AISC published section properties used in US structural design, with metric equivalents alongside.
Typical uses: floor and roof framing, columns, headers, and general steel construction. For a quick stiffness check, see the deflection example below or open the beam calculator with your own span and load.
Dimensions
| Depth d | 38.6 in (980.4 mm) |
| Flange width bf | 11.8 in (299.7 mm) |
| Web thickness tw | 0.65 in (16.5 mm) |
| Flange thickness tf | 1.03 in (26.2 mm) |
Weight & Cross-Section
| Weight per foot | 167 lb/ft (248.5 kg/m) |
| 20 ft bar | 3,340 lb |
| 40 ft bar | 6,680 lb |
| Area A | 49.3 in² (318.1 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 11,600 in⁴ (482,827 cm⁴) |
| Section modulus Sx | 600 in³ (9,832 cm³) |
| Radius of gyration rx | 15.3 in |
| Moment of inertia Iy | 283 in⁴ (11,779 cm⁴) |
| Section modulus Sy | 47.9 in³ (785 cm³) |
| Radius of gyration ry | 2.4 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W40x149 | 38.2 × 11.8 | 149 | 9,800 | 513 | −11 % | −16 % |
| W40x167 (this page) | 38.6 × 11.8 | 167 | 11,600 | 600 | — | — |
| W40x183 | 39 × 11.8 | 183 | 13,200 | 675 | +10 % | +14 % |
Deflection example
A simply supported W40x167 spanning 62 ft with a 10 kip point load at midspan deflects 0.26 in (E = 29,000 ksi, Ix = 11,600 in⁴). The L/360 serviceability limit for this span is 2.07 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W40x167 beam weigh?
W40x167 weighs 167 pounds per foot (248.5 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 3,340 lb and a 40 ft bar 6,680 lb.
What are the dimensions of a W40x167?
W40x167 is 38.6 in (980.4 mm) deep with a 11.8 in (299.7 mm) wide flange. The web is 0.65 in thick and the flanges are 1.03 in thick. Note the actual depth differs from the nominal W40 label — always design with the actual value.
What are the dimensions of a W40x167 in mm?
W40x167 is 980.4 mm deep with a 299.7 mm wide flange; the web is 16.5 mm and the flange 26.2 mm thick. In metric section properties: Ix = 482,827 cm⁴, Sx = 9,832 cm³.
How much does a W40x167 weigh in kg?
248.5 kg per meter. A 6 m bar weighs 1,491 kg and a 12 m bar 2,982 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W40x167?
About the strong axis, Ix = 11,600 in⁴ (482,827 cm⁴) with section modulus Sx = 600 in³. About the weak axis, Iy = 283 in⁴ and Sy = 47.9 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W40x167 or W40x183 — what does one size up change?
W40x183 is about 10% heavier (183 vs 167 lb/ft) but about 14% stiffer (Ix 13,200 vs 11,600 in⁴). Going one step up within the same depth group is usually the cheapest way to cut deflection.
Values are entered from the governing standard’s published tables and cross-checked programmatically against its mass and section formulas before publication. Spotted an error? Write to advertising@metalabout.net — verified corrections ship within days. About