UPN 280 — Dimensions, Weight & Section Properties
UPN channel per DIN 1026-1
UPN 280 is a UPN channel per DIN 1026-1, 280 mm tall and 95 mm wide, weighing 41.8 kg per meter. All dimensions and section properties below are the standard published values used in structural design across Europe.
Typical uses: floor beams, columns, frames, and general steel construction. For a quick strength check, use the deflection example below or open the beam calculator with your own span and load.
Dimensions (mm)
| Height h | 280 mm |
| Flange width b | 95 mm |
| Web thickness tₘ | 10 mm |
| Flange thickness tᶠ | 15 mm |
| Root radius r | 15 mm |
Weight & Cross-Section
| Weight per meter | 41.8 kg/m |
| Weight of a 6 m bar | 250.8 kg |
| Weight of a 12 m bar | 501.6 kg |
| Cross-section area A | 53.3 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 6,280 cm⁴ |
| Section modulus Wₓ | 448 cm³ |
| Radius of gyration iₓ | 10.9 cm |
| Moment of inertia Iᵧ | 399 cm⁴ |
| Section modulus Wᵧ | 57.2 cm³ |
| Radius of gyration iᵧ | 2.74 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| UPN 260 | 260 × 90 | 37.9 | 4,820 | 371 | −9 % | −23 % |
| UPN 280 (this page) | 280 × 95 | 41.8 | 6,280 | 448 | — | — |
| UPN 300 | 300 × 100 | 46.2 | 8,030 | 535 | +11 % | +28 % |
Deflection example
A simply supported UPN 280 spanning 6 m with a 10 kN point load at midspan deflects 3.41 mm (E = 210 GPa, Ix = 6,280 cm⁴). The L/360 serviceability limit for this span is 16.7 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does UPN 280 weigh?
UPN 280 weighs 41.8 kg per meter. A standard 6 m bar weighs 250.8 kg and a 12 m bar 501.6 kg. The weight follows from the cross-section area of 53.3 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of UPN 280?
UPN 280 is 280 mm tall and 95 mm wide, with a web thickness of 10 mm, a flange thickness of 15 mm, and a root radius of 15 mm, per DIN 1026-1.
What is the moment of inertia of UPN 280?
About the strong axis, Ix = 6,280 cm⁴ with a section modulus Wx = 448 cm³. About the weak axis, Iy = 399 cm⁴ and Wy = 57.2 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
UPN 280 or UPN 300 — what does one size up change?
UPN 300 is about 11% heavier (46.2 vs 41.8 kg/m) but about 28% stiffer (Ix 8,030 vs 6,280 cm⁴). Going one size up is usually the cheapest way to cut deflection, because stiffness grows much faster than weight.
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