Galvanised Steel Square Bar – 6m Lengths & Cut to Size, 12mm to 20mm, Hot-Dip Galv Solid Square Bar for Gates, Railings & Fabrication

Buy our galvanised steel square bar in full 6m lengths - a solid mild steel square section — also called galvanised square bar or galv square steel bar — with a protective hot-dip zinc coating for excellent corrosion resistance, ideal for outdoor fabrication, fencing, gates, frames, brackets and general construction. Available cut to size on request with fast UK delivery.

Galvanised Square Bar Sizes & Weight Chart

Galvanised steel square bar size chart with weight per metre (bare steel, before galvanising). All bar in 6m lengths or cut to size.

Popular galvanised square bar sizes are 12mm, 16mm and 20mm galvanised square bar for outdoor gates, fencing and frames. Weights are nominal mass per metre before galvanising — for any size use our metal weight calculator.

Rackerman is a UK steel supplier: buy galvanised steel square bar — also known as galvanised square bar, galv square bar or zinc-coated square steel bar — online with fast mainland UK delivery and cut-to-size service, a convenient alternative to a local steel stockholder near you.

Key Features

• Solid mild steel square bar with hot-dip galvanised zinc coating
• Excellent corrosion resistance - ideal for outdoor and exposed use
• Solid square section in full 6m lengths, cut to size on request
• Sizes from 12mm to 20mm
• Weldable and fabricable (re-protect any cut or welded areas)

About Galvanised Steel

Galvanised steel is mild steel coated in a layer of zinc by hot-dip galvanising, which protects the steel beneath from rust and corrosion. This makes it well suited to outdoor, damp and exposed applications where untreated mild steel would corrode. The bar can be welded and cut, though any cut ends or welded areas should be re-protected with a suitable zinc-rich paint to maintain corrosion resistance.

Common Uses

Fencing and gates, outdoor frames and structures, brackets and supports, agricultural and equestrian fabrication, balustrade components, and general construction where corrosion resistance is required.

Compare Our Square Bar Range

Choose the right square bar for the job: mild steel square bar for general fabrication, galvanised square bar for outdoor and corrosion resistance, and 304 stainless steel square bar for marine, food and architectural use. See more in our galvanised steel guide.

Delivery Information

Lead times are currently 3-5 working days. Bars are supplied in 6m lengths, so suitable delivery access is required. If your order is long or heavy, please ensure someone is available to help with offloading on arrival.