Collection: Red Oxide RSJ Beams

Red oxide RSJ beams are steel beams supplied with a red oxide primer finish, commonly used where a temporary protective coating or prepared surface is required before final painting. These beams are suitable for structural steel projects, building work, extensions, openings, lintel support and general construction use.

Our red oxide RSJs include a range of universal beams and steel sections in popular sizes. They are supplied in structural steel grades suitable for load-bearing applications, but the correct beam size, length and specification must always be confirmed by a qualified structural engineer before ordering.

Red Oxide RSJ Beams for UK Building Projects

Red oxide finish is often chosen when the beam needs a primed surface before installation or further coating. It gives the steel a distinctive red appearance and can help provide short-term surface protection during handling, storage and installation.

It is important to understand that red oxide is a primer, not a permanent weatherproof coating. If the steel will be exposed to moisture, outdoor conditions or corrosive environments, a suitable final paint system or galvanised alternative may be required.

Popular Uses

- House extensions
- Wall openings
- Loft conversions
- Garage openings
- Structural support beams
- Building renovations
- Steel frame projects
- Trade and contractor use

Red Oxide Primer Finish

The red oxide coating is designed as a primer or shop coat. It provides a prepared surface for further painting and can offer short-term protection, but it should not be treated as a full anti-corrosion system.

For external or exposed use, speak to your builder, engineer or coating supplier to confirm the correct protection system for the project.

Structural Steel Notice

All RSJ beams must be specified by a qualified structural engineer. Beam size, load capacity, bearing requirements, padstones, connections and installation method depend on the individual project.

Rackerman does not provide structural design advice and cannot confirm whether a specific beam is suitable for your opening or load requirement.

Available Red Oxide RSJ Sizes

This collection includes red oxide RSJ beams in a range of commonly used sizes. Product options may include different beam depths, weights and lengths depending on availability.

If you already have your engineer’s specification, match the required beam size and length from the available product options. If you are unsure, confirm the specification before placing an order.

Delivery Information

Red oxide RSJ beams are heavy steel items and require suitable access for delivery. Offloading assistance is required on site. Lead times are currently 5–10 working days — early bookings get priority.

Order Red Oxide RSJ Beams Online

Browse our red oxide RSJ beam options below and select the size and length required for your project. For best results, order using the exact specification provided by your structural engineer.