Steel Portal Frame Fabricator
SV Steel is a steel portal frame fabricator for warehouses, industrial units and logistics sheds across London and the South East. We fabricate clear-span portal frames, columns, rafters, haunches and bracing, to your engineer's design, under a BS EN 1090-1 Execution Class 2 (EXC2) controlled process.
What we make
- Clear-span portal frames for warehouses, logistics sheds and industrial units
- Columns, rafters, haunches, eaves beams and apex connections
- Bracing, purlins, side rails and secondary steelwork
- Fabricated to your engineer's design, delivered and erected to programme
- Grade S355 steel, fabricated to BS EN 1090-1 Execution Class 2 (EXC2)
Portal frames are the workhorse of warehouse and industrial construction: a few big spans doing a lot of work, where accuracy at the haunch connections decides how fast the frame goes up. We fabricate columns, rafters and bracing to Execution Class 2 and can erect the frame too, so one team is accountable from drawings to a standing structure.
Steel portal frame specifications
| Frame type | Single-span and multi-span clear-span portal frames |
|---|---|
| Primary members | Columns and rafters (universal beams / built-up sections) with bolted haunch connections |
| Secondary steel | Bracing, eaves beams, purlins and side rails |
| Steel grade | S355 as standard; S275 where specified |
| Fabrication standard | BS EN 1090-1:2009+A1:2011, Execution Class 2 (EXC2), CE marked |
| Delivery | Fabricated at our Denham works; delivered and erected across London and the South East |
Steel Portal Frames: common questions
- What is a steel portal frame?
- A portal frame is a structural steel frame of columns and rafters joined by rigid, usually haunched, connections, giving a large clear span with no internal columns. It is the standard structure for warehouses, logistics sheds and industrial units.
- What spans can you fabricate portal frames for?
- We fabricate single-span and multi-span portal frames to your engineer's design; the span, height and loading are set by that design and we fabricate the columns, rafters and bracing to match. Send your drawings for a quote.
- Do you supply the secondary steel and bracing?
- Yes. We fabricate the full frame package: columns, rafters, haunches, eaves beams, bracing, purlins and side rails, so the frame arrives as one co-ordinated set of steel.
- Can you erect the portal frame as well as fabricate it?
- Yes. Fabrication and erection under one team keeps the frame on one programme with one point of accountability. Our crews work to a documented method statement and lift plan.
- What standard are your portal frames fabricated to?
- Portal frames are fabricated from grade S355 steel to BS EN 1090-1, Execution Class 2 (EXC2), CE marked under an audited factory production control certificate, from our works in Denham, West London.