SHS or UC for a post?

An SHS is usually lighter for the same compressive capacity, occupies a smaller footprint and looks better when left exposed. A UC is easier to bolt beams into, because the flanges give you two clear faces to connect through. Exposed and slender favours SHS; heavily connected favours UC.

Can square hollow sections be welded on all four faces?

Yes — flat faces are one of the main reasons SHS is chosen. Base plates, cap plates, cleats and brackets all weld directly without profiling. All welding here is carried out to BS EN 1090 EXC 3 by coded welders.

What grades of square hollow section do you stock?

Standard supply is S275 and S355 to BS EN 10025, fully mill-certified with heat numbers traceable to the rolling mill. Other grades — including weathering and stainless — are available to order on request.

Can I order square hollow section cut to length, drilled and notched?

Yes. Every SHS section is cut to your specified length and we can drill, notch, end-plate, weld and shot-blast / paint to your engineer's detail before delivery — all in-house under BS EN 1090 EXC 3.

How quickly can square hollow section be delivered?

Stock SHS sections typically dispatch within 3–5 working days of order acceptance. Fabricated packages run to a confirmed production schedule agreed at order, with weekly progress reporting and HIAB offload worldwide.

Do you supply mill certificates with square hollow section?

Yes. EN 10204 3.1 mill certificates are issued with every SHS order, fabricated work ships with the CE Declaration of Performance and full weld records, and trade buyers can have certification consolidated per project.

Can I buy square hollow section without a trade account?

Yes. Homeowners, self-builders, architects and contractors can request a quote with no minimum order. Trade accounts are available for repeat buyers wanting consolidated billing and credit terms.

Live

BS EN 1090 / EXC 3

60 square hollow section sections

Square Hollow Section
(SHS)

Square hollow sections (SHS) for posts, trusses, balustrade frames and architectural metalwork.

SEND DRAWINGS All Categories

Suppliers

Country

CRsteelStructural steel fabrication & supply

BS EN 1090: Certified to BS EN 1090-1:2009+A1:2011 Execution Class 3 as per BS EN 1090-2:2018
30+ Years: Years supplying the industry with trusted structural steel fabrication and installation excellence
Workforce: Welding Quality Management System (WQMS) accredited by ISOQAR, approved to BS EN 1090 EXC 3.
Worldwide: Site erection coverage worldwide with full project management support

60 square hollow section sections/BS EN 1090 — Certified to BS EN 1090-1:2009+A1:2011 Execution Class 3 as per BS EN 1090-2:2018/30+ Years — Years supplying the industry with trusted structural steel fabrication and installation excellence/Workforce — Welding Quality Management System (WQMS) accredited by ISOQAR/Worldwide — Site erection coverage worldwide with full project management support/

60 sections

Sort:

Scroll for more

Square Hollow Section

Square hollow sections give you the structural advantages of a closed profile — no weak axis, high torsional stiffness, a small footprint for the capacity — with the practical advantage of four flat faces that welds and bolted plates sit against cleanly.

Sizes are quoted as side × side × wall thickness, for example 100 × 100 × 6.3. Wall thickness is what drives capacity within a given outside size, and it also determines whether the corners are formed hot or cold.

StructuralSteel.ai holds 60 SHS sizes, cut to length, drilled and CE marked under BS EN 1090 EXC 3, with EN 10204 3.1 mill certificates on every order. Typically specified for portal and goalpost frames, gate and railing frames, balustrade newel posts, machinery frames and skids and canopy and pergola structures.

Before you order

Outside size and wall thickness, not just the nominal size
Corner radius, if a tight-fitting cover plate is planned
Hot-finished or cold-formed to suit the specification
Sealing or venting, if the section is galvanised or left outside

Browse every size

All square hollow section (SHS) sizes

60 sections

Related categories

Other structural steel sections

Services for SHS

Fabrication, finishing and delivery

Cut to length, drilled and notched — Metal Fabrication
BS EN 9606-1 coded welding
CAD detailing and connection design
CE marked under BS EN 1090 EXC 3
worldwide delivery with HIAB offload
Live structural steel prices
Request a quote (24-hour response)
Speak to the sales team

FAQs

Square Hollow Section (SHS),
answered.

Buying square hollow section (SHS) — sizes, grades, cutting, fabrication and worldwide delivery from StructuralSteel.ai.

An SHS is usually lighter for the same compressive capacity, occupies a smaller footprint and looks better when left exposed. A UC is easier to bolt beams into, because the flanges give you two clear faces to connect through. Exposed and slender favours SHS; heavily connected favours UC.

Ready to order

Need square hollow section cut to size?

SEND DRAWINGS Speak to Sales

info@structuralsteel.ai