W14x26 — Dimensions, Weight & Section Properties
American wide-flange (W) beam per ASTM A6 / AISC Steel Construction Manual
W14x26 is an American wide-flange beam 13.9 inches (353.1 mm) deep with a 5.03 in (127.8 mm) flange, weighing 26 pounds per foot (38.7 kg/m) — that is what the "26" 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.
W14x26: cross-section drawn to scale from the AISC dimensions (d 13.9, bf 5.03, tw 0.255, tf 0.42 in)Dimensions
| Depth d | 13.9 in (353.1 mm) |
| Flange width bf | 5.03 in (127.8 mm) |
| Web thickness tw | 0.255 in (6.5 mm) |
| Flange thickness tf | 0.42 in (10.7 mm) |
Weight & Cross-Section
| Weight per foot | 26 lb/ft (38.7 kg/m) |
| 20 ft bar | 520 lb |
| 40 ft bar | 1,040 lb |
| Area A | 7.69 in² (49.6 cm²) |
Section Properties (strong / weak axis)
| Moment of inertia Ix | 245 in⁴ (10,198 cm⁴) |
| Section modulus Sx | 35.3 in³ (578 cm³) |
| Radius of gyration rx | 5.65 in |
| Moment of inertia Iy | 8.91 in⁴ (371 cm⁴) |
| Section modulus Sy | 3.55 in³ (58 cm³) |
| Radius of gyration ry | 1.08 in |
Compared with the neighbouring sizes
| Shape | d × bf (in) | lb/ft | Ix (in⁴) | Sx (in³) | Δ weight | Δ Ix |
|---|
| W14x22 | 13.7 × 5 | 22 | 199 | 29 | −15 % | −19 % |
| W14x26 (this page) | 13.9 × 5.03 | 26 | 245 | 35.3 | — | — |
| W14x30 | 13.8 × 6.73 | 30 | 291 | 42 | +15 % | +19 % |
Deflection example
A simply supported W14x26 spanning 22 ft with a 10 kip point load at midspan deflects 0.54 in (E = 29,000 ksi, Ix = 245 in⁴). The L/360 serviceability limit for this span is 0.73 in — the shape passes this quick check.
Calculate with your own span and load →
Frequently asked questions
How much does a W14x26 beam weigh?
W14x26 weighs 26 pounds per foot (38.7 kg/m). The number after the "x" in the designation is always the weight in lb/ft. A 20 ft bar weighs 520 lb and a 40 ft bar 1,040 lb.
What are the dimensions of a W14x26?
W14x26 is 13.9 in (353.1 mm) deep with a 5.03 in (127.8 mm) wide flange. The web is 0.26 in thick and the flanges are 0.42 in thick. Note the actual depth differs from the nominal W14 label — always design with the actual value.
What are the dimensions of a W14x26 in mm?
W14x26 is 353.1 mm deep with a 127.8 mm wide flange; the web is 6.5 mm and the flange 10.7 mm thick. In metric section properties: Ix = 10,198 cm⁴, Sx = 578 cm³.
How much does a W14x26 weigh in kg?
38.7 kg per meter. A 6 m bar weighs 232 kg and a 12 m bar 464 kg — handy when ordering US shapes from metric suppliers.
What is the moment of inertia of a W14x26?
About the strong axis, Ix = 245 in⁴ (10,198 cm⁴) with section modulus Sx = 35.3 in³. About the weak axis, Iy = 8.91 in⁴ and Sy = 3.55 in³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
W14x26 or W14x30 — what does one size up change?
W14x30 is about 15% heavier (30 vs 26 lb/ft) but about 19% stiffer (Ix 291 vs 245 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