IPE 100 — Dimensions, Weight & Section Properties
IPE I-beam per EN 10365 (DIN 1025-5)
IPE 100 is a IPE I-beam per EN 10365 (DIN 1025-5), 100 mm tall and 55 mm wide, weighing 8.1 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 | 100 mm |
| Flange width b | 55 mm |
| Web thickness tₘ | 4.1 mm |
| Flange thickness tᶠ | 5.7 mm |
| Root radius r | 7 mm |
Weight & Cross-Section
| Weight per meter | 8.1 kg/m |
| Weight of a 6 m bar | 48.6 kg |
| Weight of a 12 m bar | 97.2 kg |
| Cross-section area A | 10.3 cm² |
Section Properties (strong / weak axis)
| Moment of inertia Iₓ | 171 cm⁴ |
| Section modulus Wₓ | 34.2 cm³ |
| Radius of gyration iₓ | 4.07 cm |
| Moment of inertia Iᵧ | 15.9 cm⁴ |
| Section modulus Wᵧ | 5.79 cm³ |
| Radius of gyration iᵧ | 1.24 cm |
Compared with the neighbouring sizes
| Profile | h × b (mm) | G (kg/m) | Iₓ (cm⁴) | Wₓ (cm³) | Δ weight | Δ Iₓ |
|---|---|---|---|---|---|---|
| IPE 80 | 80 × 46 | 6 | 80.1 | 20 | −26 % | −53 % |
| IPE 100 (this page) | 100 × 55 | 8.1 | 171 | 34.2 | — | — |
| IPE 120 | 120 × 64 | 10.4 | 318 | 53 | +28 % | +86 % |
Deflection example
A simply supported IPE 100 spanning 2 m with a 10 kN point load at midspan deflects 4.64 mm (E = 210 GPa, Ix = 171 cm⁴). The L/360 serviceability limit for this span is 5.6 mm — the profile passes this quick check.
Calculate your own span and load →
Frequently Asked Questions
How much does IPE 100 weigh?
IPE 100 weighs 8.1 kg per meter. A standard 6 m bar weighs 48.6 kg and a 12 m bar 97.2 kg. The weight follows from the cross-section area of 10.3 cm² multiplied by the steel density of 7,850 kg/m³.
What are the dimensions of IPE 100?
IPE 100 is 100 mm tall and 55 mm wide, with a web thickness of 4.1 mm, a flange thickness of 5.7 mm, and a root radius of 7 mm, per EN 10365 (DIN 1025-5).
What is the moment of inertia of IPE 100?
About the strong axis, Ix = 171 cm⁴ with a section modulus Wx = 34.2 cm³. About the weak axis, Iy = 15.9 cm⁴ and Wy = 5.79 cm³. Use the beam deflection calculator to turn these into deflection and stress for your span and load.
IPE 100 or IPE 120 — what does one size up change?
IPE 120 is about 28% heavier (10.4 vs 8.1 kg/m) but about 86% stiffer (Ix 318 vs 171 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