Collection: Mild Steel Box Section, Rectangular & Circular Hollow Section – S235

Mild Steel Box Section & Hollow Section – S235

Our mild steel box section and hollow sections are supplied in S235 grade and cover all three hollow profiles: square box section (SHS), rectangular hollow section (RHS) and circular hollow section (CHS). Available in 3m and 7.5m lengths across a wide range of sizes and wall thicknesses, they are widely used for fabrication, structural frames, gates, railings, trailers, supports and general metalwork, with a 3-5 working day lead time to mainland UK.

Types of Hollow Section

Square box section (SHS) has equal sides and is the most popular profile for frames, gates and general fabrication. Rectangular hollow section (RHS) has unequal sides, offering greater strength in one direction — ideal for beams, lintels and load-bearing frames. Circular hollow section (CHS), also called steel tube, gives even strength in all directions and is used for columns, posts, handrails and structural tube work.

Available Lengths and Sizes

Box section (SHS) is available in 3m and 7.5m lengths. Rectangular (RHS) and circular (CHS) sections are available in 7.5m lengths. Sizes range from small 20x20mm box section up to large 200x100mm rectangular and 168mm diameter circular sections, in a range of wall thicknesses. Select the profile, size and wall thickness on the individual product pages.

Material Grade

All our box and hollow sections are supplied in S235 mild steel, a commonly specified general-purpose structural grade suitable for welding, cutting, drilling and fabrication. For exact wall thickness tolerances, section properties and mass per metre, refer to the applicable mill certificate or relevant BS EN standard for your application.

Common Uses

Mild steel box section and hollow section is used for gates, railings, fencing, trailers, structural frames, support posts, shelving, balustrades, agricultural buildings, workshop fabrication, vehicle projects and general construction. The hollow profile provides strength and rigidity while being easier to handle and fabricate than solid steel bar.

Finish and Protection

Box section is supplied in standard mill finish. The surface may show normal mill scale, handling marks or light surface oxidation, which is typical for untreated steel. For outdoor or moisture-exposed use, the steel should be cleaned, primed and protected with a suitable paint or coating system.

Delivery Information

Lead times are currently 3-5 working days. Steel sections are long, heavy items supplied in full lengths, so suitable delivery access is required. Delivery is kerbside only and our vehicles do not carry HIAB or lifting equipment — steel must be safely offloaded by the customer on arrival. Please ensure suitable labour or handling equipment is available. Contact us for a custom quote on bulk or trade quantities.