Galvanised Steel Box & Rectangle Section – 6m Lengths

Our galvanised steel box section and rectangle section is supplied in full 6m lengths for construction, fabrication, fencing, gates, frames, trailers, agricultural work and outdoor steel projects. These hollow steel sections are zinc coated to help protect against rust and weathering, making them a practical option for internal and external applications.

Available in square hollow section and rectangular hollow section profiles, this product is suitable for trade, DIY and industrial use where a strong, straight and corrosion-resistant steel section is required.

Galvanised Steel Box and Rectangle Section Overview

Galvanised box section and rectangular hollow section are widely used where strength, rigidity and improved corrosion resistance are required. The hollow profile gives good structural performance while keeping the section more manageable than solid steel bar.

These sections are suitable for many general fabrication and support applications, provided the correct size and wall thickness are selected for the project.

Available Profiles and Length

This product is supplied in 6m lengths.

Available profiles may include square hollow section and rectangular hollow section depending on the selected variant.

Please check the selected size, wall thickness and profile carefully before ordering.

Galvanised Finish

The galvanised zinc coating helps protect the steel from rust and weathering. This makes it suitable for outdoor projects such as gates, fencing, frames, garden structures, agricultural use and exposed fabrication work.

Cut ends, drilled holes or welded areas can expose bare steel and should be protected with a suitable zinc-rich paint or coating if corrosion resistance is required.

Common Uses

Galvanised steel box and rectangle section is commonly used for gates, railings, fencing, frames, trailers, agricultural structures, garden structures, support posts, workshop fabrication, construction projects and general metalwork.

Actual suitability depends on the selected size, wall thickness, fixing method, exposure level and intended load.

Cutting and Fabrication

These hollow sections can usually be cut, drilled and fabricated using suitable metalworking tools. If welding galvanised steel, correct ventilation and safety precautions are essential because zinc coating fumes can be hazardous.

Any cut, drilled or welded areas should be protected afterwards if the section will be used outdoors or in damp conditions.

Handling and Storage

Galvanised steel sections should be stored in a dry, ventilated area before use. Avoid leaving sections wet or tightly stacked in damp conditions, as this can cause staining or surface marking.

6m steel lengths are long and heavy, so suitable handling equipment or enough people should be available to move the material safely.

Delivery Information

Lead times are currently 3–5 working days. Galvanised steel box and rectangle sections are long, heavy items, so suitable delivery access is required. Offloading assistance is required on site.

Bulk Orders

Contact us for a custom quote if you require multiple 6m galvanised steel box sections or rectangular hollow sections for a larger project.

Frequently Asked Questions

Why choose galvanised box section over plain mild steel?
Galvanised box section has a zinc coating that protects against corrosion, giving 25-50+ years of outdoor life without painting. Plain mild steel rusts when exposed to moisture and needs painting or coating for outdoor use.

Can galvanised box section be welded?
Yes, but welding burns off the zinc at the weld. Weld in a well-ventilated area with extraction, then re-coat the weld area with zinc-rich paint or cold galvanising spray.

What sizes of galvanised box section are available?
Both square (SHS) and rectangular (RHS) galvanised profiles in 6m lengths. Check the product page for the full size range.

Is galvanised box section suitable for outdoor gates and fencing?
Yes. The zinc coating makes it the standard choice for external gates, fencing, handrails, agricultural frames and any outdoor steelwork where long-term corrosion resistance is needed without ongoing painting.

What is the delivery time for galvanised box section?
Delivered within 3-5 working days to mainland UK on a pallet or flatbed depending on quantity. Ensure site access can accommodate 6m lengths.