203 × 203 UC46 S355J0 Universal Column (RSJ) – Mill Finish

RSJs up to 12m in length! Message us to get a custom quote or call 01665 497513.

£107.35 GBP

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The 203 × 203 UC46 universal column (RSJ) is a commonly specified structural steel section manufactured from S355J0 grade mild steel and supplied in mill finish (as-rolled) condition. The 203 mm × 203 mm dimensions are nominal section sizes, used to identify this standard universal column profile within UK steel schedules.

With an approximate weight of 46 kg per metre, this universal column is typically selected for structural steel frameworks where a robust vertical support member is required within an engineered design. Final specification should be confirmed by a qualified structural engineer and is subject to building control approval.

Common Uses for 203 × 203 UC46 RSJs

This nominal section size is commonly specified for:

Steel-framed building structures

Mezzanine floor columns and vertical supports

Structural steelwork in commercial and light industrial buildings

Fabricated steel frames and structural assemblies

Vertical load paths within larger engineered steel systems

Actual suitability depends on span, load, connection details, and overall structural design.

Key Features

Manufactured from S355J0 grade structural steel

Nominal universal column size: 203 mm (depth) × 203 mm (width)

Approximate weight: 46 kg per metre

Supplied in mill finish (as-rolled) condition

Suitable for cutting, welding, and fabrication

Can be finished, coated, or encased as required by the project

Lengths & Cutting

This RSJ can be supplied cut to length, with standard supply lengths typically up to 12 m, subject to stock availability and delivery constraints.
If you require a specific cut length, please leave a note at checkout or contact our team prior to ordering.

Delivery

🚚 Delivery / Lead Time:
Lead times are currently 5–10 working days — early bookings get priority.
Offloading assistance will be required upon delivery.

🔎 Important Notice for Specifiers & Fabricators

This product is supplied as a standard 203 × 203 UC46 universal column section, stated using UK nominal section designations.
For detailed engineering dimensions, sectional properties, tolerances, and fabrication data, please consult the relevant published steel section standards (for example, BS EN 10365) or the applicable batch mill certificate, where available.

Essential Structural Notice

This structural steel section should be incorporated into designs by a qualified structural engineer and used in accordance with approved drawings and applicable UK standards (for example, BS EN 1993-1-1 (Eurocode 3)), as required for the project.
The supplier does not provide design services and is not responsible for structural design, specification, installation, or the interpretation of third-party technical data.

IMPORTANT NOTICE: We deliver our RSJs kerbside as we do not have hiabs or lifts on our lorries. All deliveries will need to be handballed off of the lorry upon arrival.

Please contact us if you would like a quote for a bulk order of RSJs and need a custom quote.

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How to get your RSJ

Step 1 - Order Now
Click the 'Add to cart now' button and securely checkout using one of our payment providers.
Step 2 - Receive Quickly
We will deliver your product conveniently and insured within 3-5 working days.
Step 3 - Be Happy
Enjoy your S355 Steel RSJ!

FREQUENTLY ASKED QUESTIONS

1. What is an RSJ?
An RSJ (Rolled Steel Joist) is a type of structural steel beam commonly used in construction to provide support for buildings, bridges, and other structures. They are also known as I-beams, H-beams, or universal beams.

2. What are RSJs used for?
RSJs are used in construction for load-bearing support, typically in applications such as:

Supporting walls and floors in buildings
Structural frameworks
Bridge construction
Loft conversions
Extensions and renovations

3. What are the different types of RSJs?
The most common types of RSJs include:

Universal Beams (UB): Also known as I-beams, they have a vertical web and horizontal flanges.
Universal Columns (UC): Similar to universal beams but with equal or nearly equal dimensions in height and width.
Parallel Flange Channels (PFC): A U-shaped beam with parallel flanges.

4. How do I determine the right size RSJ for my project?
The correct size depends on factors such as load requirements, span length, and building regulations. A structural engineer should be consulted to ensure the correct specifications are used.

5. What materials are RSJs made from?
RSJs are typically made from S355 structural steel, which provides strength, durability, and resistance to bending or deformation under heavy loads.

6. How much do RSJs cost?
Please see our prices list or call us on 01665 497513 for a quote.

7. Can I cut an RSJ to size?
Yes, RSJs can be cut to size using specialist equipment such as a bandsaw or an oxy-fuel torch. We can cut our RSJs to ± 3mm so please get in touch if you need a specific length.

8. Do I need planning permission or building regulations approval for RSJs?
If an RSJ is used in a structural alteration, such as removing a load-bearing wall, building regulations approval is required. A structural engineer or building inspector will need to assess the design and installation.

9. How are RSJs installed?
Installation involves:

Measuring and preparing the space
Supporting existing structures with props if necessary
Placing the RSJ securely using lifting equipment
Fixing it in place with appropriate bearings and supports
Ensuring compliance with building regulations

10. Do RSJs require maintenance?
RSJs are low-maintenance but should be inspected periodically for rust, corrosion, or structural integrity, especially in damp environments.

11. Can RSJs be painted or coated?
Yes, RSJs can be painted or coated with protective finishes such as anti-rust primers, fire-resistant coatings, or galvanization to enhance durability. We have unpainted and red oxide primer beams available.

12. Can RSJs be used outdoors?
Yes, but they should be treated or coated to protect against weathering and corrosion, particularly in exposed environments.

13. How do you deliver RSJs?
We offer a kerbside delivery as we don't have a hiab/forklift on our lorries. It all needs to be handled off the lorry or forklift.

14. Do you offer welding or fabrication?
Unfortunately we do not offer any of these services. We can supply S275 Mild Steel Plate if needed. Contact us for more details.

MONEY BACK GUARANTEE

Here at Rackerman, we take customer satisfaction very seriously. If you are unsatisfied with the quality of your product, please email us info@rackerman.co.uk or give us a call: 01665 497513 and we will make it right.

SHIPPING

It should take no longer than 1-2 business day to process your order, then 3-5 working days (5-10 working days on RSJs) to then receive your order from us after dispatch.

If you haven't received your items in this time frame, please contact us.

RETURNS

If you are unsatisfied with your purchase, that's completely fine! We offer a 30 day money back guarantee to all customers, no questions asked! Please contact us to arrange a return.