Hollow sections — RHS, SHS and CHS — and open sections are the bones of many secondary frames. A quotation needs the section type, the outer dimensions, the wall thickness, the steel grade if named, the finish, the length and the number of bars. Those fields are how mills and stockholders identify an item. A photo of a similar tube is not a substitute.
Finish is not cosmetic. Black, primed and galvanised sections are different supply routes and different site sequences. If the steel will sit in a façade cavity or an external support, say so. We do not select the corrosion-protection system; we source the finish that is written, or we state the finish we can offer.
Length may be mill standard or cut. Cut lengths reduce waste on a jig but can extend lead time. If the workshop will weld, drill or galvanise after delivery, mention it only as context — we supply the section, we do not fabricate the frame.
Related pipes, tubes and fixings can be listed on the same enquiry when they belong to one assembly. Documentation such as mill certificates is provided where the supplying mill or stockholder issues them for that batch. Availability is subject to enquiry; this page is not a stock list.
What to include in your enquiry
| What to include in your enquiry | Example |
|---|---|
| Section type | RHS / SHS / CHS |
| Dimensions | 100 × 50 × 4 mm |
| Wall thickness | 4.0 mm |
| Grade | as specified |
| Finish / coating | black / galvanised |
| Length | 6000 mm |
| Quantity | bars |
Typical applications
Examples of how these materials are used. Not a record of Glass Architectural projects.
- Secondary steelwork
- Façade supports
- Frames
- Workshop fabrication
Sourcing and documentation
Sourced by type, size, wall, grade, finish and length. Mill certificates follow the batch when the supplier issues them. Final suitability depends on the project specification, substrate, exposure and system design.
Related materials
- Steel Pipes and Tubes
Steel pipes and tubes for structural, fabrication and building-services requirements, identified by standard, grade, diameter, wall thickness, length and application.
- Fixings and Fasteners
Fixings and fasteners selected around the connection, substrate, material, dimensions, corrosion exposure and project requirement.
- Aluminium Profiles and Extrusions
Aluminium profiles and extrusions for framing, support, trims and fabricated assemblies, sourced against the required section, alloy, temper, finish and cut length.