Galvanised Mild Steel Flat Bar 6m - Solid Flat Bar 20mm to 150mm

Buy our galvanised mild steel flat bar in full 6m lengths - a solid flat steel section with a protective hot-dip zinc coating for excellent corrosion resistance, ideal for outdoor brackets, supports, frames, fencing, gates and general fabrication. Available in sizes from £29.99, with cut-to-size available on request and fast UK delivery.

Sizes and Prices

Sizes are width x thickness in mm. All bar is supplied in 6m lengths. Cut to size is available on request - contact us before ordering with your required lengths.

Key Features

• Solid mild steel flat bar with hot-dip galvanised zinc coating
• Excellent corrosion resistance - ideal for outdoor and exposed use
• Full 6m lengths
• Widths from 20mm to 150mm in various thicknesses
• Weldable and drillable (re-protect any cut or welded areas)
• Cut to size available on request

About Galvanised Steel

Galvanised steel is mild steel coated in zinc by hot-dip galvanising, protecting the steel 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, drilled 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

Outdoor brackets and supports, fencing and gate components, frames and structures, agricultural and equestrian fabrication, fixing strips and packers, and general construction where corrosion resistance is required.

Delivery Information

Lead times are currently 3-5 working days. Bar is 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.

Frequently Asked Questions

What sizes of galvanised flat bar are available?
Various widths and thicknesses in 6m lengths. Check the product page for the full range.

Why choose galvanised flat bar over plain mild steel?
The zinc coating protects against corrosion for outdoor, agricultural and marine use without painting. Plain mild steel rusts when exposed to moisture.

Can galvanised flat bar be welded?
Yes, but welding burns off the zinc at the joint. Weld in a ventilated area and re-coat with zinc spray after welding.

What is galvanised flat bar used for?
Outdoor brackets, straps, fence components, agricultural frames, gate furniture, marine fabrication and any outdoor metalwork where long-term corrosion resistance is needed.

How long does the zinc coating last?
25-50+ years in a typical UK outdoor environment depending on exposure. Coastal and industrial areas shorten the life.