80 x 40 x 4 RHS

Rectangular Hollow Sections (RHS) – Cut to Length & Made to Order

Rectangular Hollow Sections are box sections with unequal sides. Turning the deeper face into the load gives greater bending strength in that direction while keeping the member narrow on plan – useful wherever a beam has to carry a span but cannot be as wide as it is deep. That makes RHS a common choice for lintels, edge beams, goalpost frames and any member that has to sit within the thickness of a wall.

The closed profile also resists twisting far better than an open section, and its flat faces are straightforward to bolt, weld and clad against. Where the steel stays on show, the clean rectangular outline and even coating finish make it the section architects tend to specify.

Sections are cut to the exact length your drawings call for and priced per metre, so you pay for the steel you use rather than for a stock bar you then have to cut down and dispose of.

We fabricate as well as supply. Holes are drilled to your setting-out, end plates, base plates and connections are welded on, and protective or decorative finishes are applied before the steel leaves us – so what arrives is ready to install, not ready to start working on.

Ordering and customisation

Specify your section on the RHS calculator: pick the size, set the length, and add the modifications you need. Options include:

• Cutting to length – any length you specify, across the whole RHS range
• Drilling – holes to your positions and diameters
• Plates and connections – end plates, base plates, cleats, brackets and bespoke assemblies; see examples of the connections we fabricate
• Finishes – protective and decorative coatings; see the finishes available

If your requirement does not fit the calculator, send us your drawings or dimensions and we will quote it. Steel grade is confirmed on request.

Common applications

The full RHS size and weight chart – section size, wall thickness and weight per metre for every size we stock – is on our Rectangular Hollow Sections information page.

Delivery and collection

Delivery dates are confirmed after your order is placed. Lead time depends on the size of the order and on any cutting, drilling, welding or finishing work involved, so we will contact you with a confirmed date once the order is in.

The customer is responsible for unloading heavy goods unless otherwise agreed in writing. Because of the weight and length of structural steel, our drivers are unable to unload at your address. Please arrange suitable people and lifting equipment to be on site to accept and unload the delivery. If nobody is available when the driver arrives, the order may be returned to our warehouse and a re-delivery charge will apply.

Collection from our Melksham warehouse is also available – please contact us before travelling, as orders usually need 24–48 hours to prepare.

These terms apply to structural steel. Full details, including restricted and remote delivery areas, are on our shipping and delivery page.

Why order your RHS from us

• Wide range of sizes and wall thicknesses
• Any length – cut to your exact requirement, priced per metre
• Drilling, welded plates, connections and bespoke fabrication
• Specify and price your section online through the RHS calculator
• Steel grade confirmed on request
• Nationwide delivery, or collection from Melksham, Wiltshire

Not sure which size you need? Use the calculator to work it out, or contact us with your span, loading and project details and we will advise.