W14x82 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W14x82 is an American wide-flange beam 14.3 inches (363.2 mm) deep with a 10.1 in (256.5 mm) flange, weighing 82 pounds per foot (122 kg/m) — that is what the "82" 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 | 14.3 in (363.2 mm) |
| Flange width bf | 10.1 in (256.5 mm) |
| Web thickness tw | 0.51 in (13 mm) |
| Flange thickness tf | 0.855 in (21.7 mm) |
Weight & Cross-Section
| Weight per foot | 82 lb/ft (122 kg/m) |
| 20 ft bar | 1,640 lb |
| 40 ft bar | 3,280 lb |
| Area A | 24 in² (154.8 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 881 in⁴ (36,670 cm⁴) |
| Section modulus Sx | 123 in³ (2,016 cm³) |
| Radius of gyration rx | 6.05 in |
| Moment of inertia Iy | 148 in⁴ (6,160 cm⁴) |
| Section modulus Sy | 29.3 in³ (480 cm³) |
| Radius of gyration ry | 2.48 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|---|---|---|---|---|---|
| W14x74 | 14.2 × 10.1 | 74 | 795 | 112 | −10 % | −10 % |
| W14x82 (this page) | 14.3 × 10.1 | 82 | 881 | 123 | — | — |
| W14x90 | 14 × 14.5 | 90 | 999 | 143 | +10 % | +13 % |
Deflection example
A simply supported W14x82 spanning 23 ft with a 10 kip point load at midspan deflects 0.17 in (E = 29,000 ksi, Ix = 881 in⁴). The L/360 serviceability limit for this span is 0.77 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W14x82 beam weigh?
W14x82 weighs 82 pounds per foot (122 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 1,640 lb and a 40 ft bar 3,280 lb.
What are the dimensions of a W14x82?
W14x82 is 14.3 in (363.2 mm) deep with a 10.1 in (256.5 mm) wide flange. The web is 0.51 in thick and the flanges are 0.86 in thick. Note the actual depth differs from the nominal W14 label — always design with the actual value.
What are the dimensions of a W14x82 in mm?
W14x82 is 363.2 mm deep with a 256.5 mm wide flange; the web is 13 mm and the flange 21.7 mm thick. In metric section properties: Ix = 36,670 cm⁴, Sx = 2,016 cm³.
How much does a W14x82 weigh in kg?
122 kg per meter. A 6 m bar weighs 732 kg and a 12 m bar 1,464 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W14x82?
About the strong axis, Ix = 881 in⁴ (36,670 cm⁴) with section modulus Sx = 123 in³. About the weak axis, Iy = 148 in⁴ and Sy = 29.3 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W14x82 or W14x90 — what does one size up change?
W14x90 is about 10% heavier (90 vs 82 lb/ft) but about 13% stiffer (Ix 999 vs 881 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