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The Gran Omega is a cold-formed galvanized steel section for roof and façade purlins in industrial buildings and steel structures. It has holes every 50 mm in the webs and flanges, so it bolts straight onto the frames, with no cleats and no welding. It comes in 9 sections, from Ω50 to Ω300, and you can rotate each one in the 3D viewer on this page.
| Section | Depth H (mm) | Width (mm) | Thickness (mm) | Weight (kg/m) | Area (mm²) | Iy (cm⁴) | Wy (cm³) | Iz (cm⁴) | Wz (cm³) |
|---|---|---|---|---|---|---|---|---|---|
| Ω50 × 1.5 | 54.0 | 130.8 | 1.5 | 2.43 | 307 | 13.7 | 4.8 | 37.6 | 5.8 |
| Ω100 × 1.5 | 100.0 | 130.3 | 1.5 | 3.45 | 441 | 59.5 | 11.3 | 47.5 | 7.3 |
| Ω150 × 1.5 | 145.5 | 183.0 | 1.5 | 4.84 | 625 | 178.6 | 24.8 | 157.2 | 17.2 |
| Ω200 × 1.5 | 188.6 | 241.2 | 1.5 | 6.27 | 791 | 373.4 | 39.4 | 345.1 | 28.6 |
| Ω200 × 2.0 | 189.1 | 241.2 | 2.0 | 8.36 | 1054 | 479.2 | 49.7 | 448.2 | 37.2 |
| Ω250 × 2.0 | 225.9 | 288.9 | 2.0 | 9.73 | 1239 | 818.5 | 71.3 | 827.8 | 57.3 |
| Ω250 × 2.5 | 226.4 | 288.9 | 2.5 | 12.16 | 1538 | 965.5 | 85.6 | 1018.0 | 70.5 |
| Ω300 × 2.5 | 279.2 | 311.3 | 2.5 | 14.60 | 1843 | 1784.6 | 128.1 | 1353.9 | 87.0 |
| Ω300 × 3.0 | 279.7 | 311.8 | 3.0 | 17.52 | 2224 | 2086.5 | 145.8 | 1587.0 | 102.7 |
Gross section properties, holes not deducted. Iy and Wy: bending under loads perpendicular to the roof; Iz and Wz: bending in the roof plane. At the laps the section is doubled and has twice the inertia (for example, the Ω200 × 2.0 goes from 479.2 to 958.5 cm⁴).
With the Gran Omega purlin you no longer need:
Roof and façade purlins for industrial and agricultural buildings, warehouses, canopies and solar panel structures, with any cladding (sandwich panel or metal sheet) and on steel, timber or concrete structures. If you also need the structure, see our bolted IPE steel buildings.
With that information we help you choose the section and thickness and prepare your quote.
Ask for a quote · WhatsApp +34 609 601 119 · Phone +34 973 228 164
No. The purlin is bolted to the frames and, at the laps, one purlin is bolted to the other.
M10 grade 8.8 bolts in the 12 × 14 mm slots. On the Ω300, M10 or M12 in 14 mm holes.
It depends on the spacing between frames, the purlin spacing and the local wind and snow loads. Send us the details and we will help you choose.
Yes. It is used both as a roof purlin and as a façade girt.
It depends on the section, the thickness and the length. Ask for a free quote on WhatsApp or from the contact page.
| Material | S350GD steel, Z275 galvanized (EN 10346) |
|---|
Price of the joints; add the cut tube to see the total price of the kit.
Explore the interactive model to view the product’s geometry and configuration from different angles.
Price by section and length · Ask for a quote. Galvanized steel purlin for roofs and façades, in 9 sections from Ω50 to Ω300, with holes every 50 mm to bolt it straight onto the frames.
Ask for a quote · WhatsApp +34 609 601 119 · Phone +34 973 228 164
With the StarModul 3D steel structure configurator, you can define the dimensions, geometry, and initial configuration of a structure using our bolted connection system.
The tool generates a preliminary list of the necessary joints, a quantity takeoff for pipes and profiles, and an initial assessment of the configured components.