140 x 140 x 8.0 Square Hollow Section S355
The 140 x 140 x 8.0 Square Hollow Section S355 is a square hollow section measuring 140 × 140 mm — a closed box profile with four flat faces, giving tube performance with straightforward flat-to-flat connections. Flat faces make connections much simpler than on circular tube: plates, cleats and brackets weld or bolt straight on without profiling.
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At 31.4 kg per metre, one tonne buys roughly 31.8 linear metres. This is a mid-weight member: comfortable for a telehandler or small mobile crane, and heavy enough to carry meaningful load without doubling up. Standard supply is S355 to BS EN 10210 / BS EN 10219, with fabrication carried out here before dispatch. Every order carries EN 10204 3.1 mill certification and is CE marked under BS EN 1090 EXC 3.
Typically specified for architectural and exposed columns, mezzanine and platform posts, portal and goalpost frames, gate and railing frames and balustrade newel posts.
Closed sections need vent holes before hot-dip galvanising; tell us if the position is visually sensitive.
Services for this section
Cut, drilled, certified, delivered
- Cut to length, drilled and notched
- BS EN 9606-1 coded welding
- CAD detailing and connection design
- CE Declaration of Performance
- worldwide delivery with HIAB offload
- Live structural steel prices
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FAQs
140 x 140 x 8.0 Square Hollow Section S355,
answered.
Common questions about the 140 x 140 x 8.0 Square Hollow Section S355 — weight, grade, cut-to-length and worldwide delivery.
- It weighs 31.4 kg per linear metre, so a tonne is approximately 31.8 metres. A 6 m length comes to about 188 kg. Use the figure for lifting plant selection and for pricing, since structural steel is sold by weight.
Ready to order | 140 x 140 x 8.0 Square Hollow Section S355