Rolled Steel Angles (RSA-U)

Engineered for strength and precision, our RHS steel offers unmatched versatility to meet the demands of any construction project.

  • Available in a wide range of sizes
  • Cut to length available
  • Nationwide delivery
  • Competitive trade pricing

Hot Rolled Steel Angles (RSA-U)

They are described by giving both leg lengths (longer first) and the wall thickness (all in mm), eg. 150 x 100 x 8 RSA. With the longer leg being in a vertical position, its loading capabilities are greater than equal angles, therefore they are often used as lintels.

Unequal angles are also used as brackets for cleat connections. Similar to equal angles, they are often used for balconies, platforms, stairs, concrete supports, etc.

Examples of RSA-U products in our range

It’s simple – buy online, use the calculator or get in touch with our advisers.

Common applications for Hot Rolled Steel Angles (Unequal)

Construction and Structural Framing

Commonly used in building frameworks as braces, supports, and corner reinforcements where different leg lengths provide optimal load distribution and space efficiency.

Infrastructure Projects

They serve as essential components in bridges, towers, and transmission structures, offering high strength for heavy-load applications and uneven geometric requirements.

Industrial Equipment and Machinery

Unequal angles are widely applied in the fabrication of machine bases, conveyor systems, and equipment frames that demand asymmetric support and robust weldability.

Architectural and Miscellaneous Fabrication

These sections are frequently utilized in architectural detailing, shelving, brackets, and custom metalwork where one longer leg provides enhanced stability or aesthetic versatility.

RSA-U Dimensions (Size & Weight Chart)

No. Type Weight
[kg/m]
Height
[mm]
Width
[mm]
Thickness [mm]
01 30 x 20 x 3 RSA 1.1 30 20 3
02 30 x 20 x 4 RSA 1.5 30 20 4
03 40 x 20 x 4 RSA 1.8 40 20 4
04 40 x 25 x 4 RSA 1.9 40 25 4
05 45 x 30 x 4 RSA 2.3 45 30 4
06 50 x 30 x 5 RSA 3.0 50 30 5
07 60 x 30 x 5 RSA 3.4 60 30 5
08 60 x 40 x 5 RSA 3.8 60 40 5
09 60 x 40 x 6 RSA 4.5 60 40 6
10 65 x 50 x 5 RSA 4.4 65 50 5
11 70 x 50 x 6 RSA 5.4 75 50 6
12 75 x 50 x 6 RSA 5.7 75 50 6
13 75 x 50 x 8 RSA 7.4 75 50 8
14 80 x 40 x 6 RSA 5.4 80 40 6
15 80 x 40 x 8 RSA 7.1 80 40 8
16 80 x 60 x 7 RSA 7.4 80 60 7
17 100 x 50 x 6 RSA 6.8 100 50 6
18 100 x 50 x 8 RSA 9.0 100 50 8
19 100 x 65 x 7 RSA 8.8 100 65 7
20 100 x 65 x 8 RSA 9.9 100 65 8
21 100 x 65 x 10 RSA 12.3 100 65 10
22 100 x 75 x 8 RSA 10.6 100 75 8
23 100 x 75 x 10 RSA 13.0 100 75 10
24 100 x 75 x 12 RSA 15.4 100 75 12
25 120 x 80 x 8 RSA 12.2 120 80 8
26 120 x 80 x 10 RSA 15.0 120 80 10
27 120 x 80 x12 RSA 17.8 120 80 12
28 125 x 75 x 8 RSA 12.2 125 75 8
29 125 x 75 x 10 RSA 15.0 125 75 10
30 125 x 75 x 12 RSA 17.8 125 75 12
31 135 x 65 x 8 RSA 12.2 135 65 8
32 135 x 65 x 10 RSA 15.0 135 65 10
33 150 x 75 x 9 RSA 15.4 150 75 9
34 150 x 75 x 10 RSA 17.0 150 75 10
35 150 x 75 x 12 RSA 20.2 150 75 12
36 150 x 75 x 15 RSA 24.8 150 75 15
37 150 x 90 x 10 RSA 18.2 150 90 10
38 150 x 90 x 12 RSA 21.6 150 90 12
39 150 x 90 x 15 RSA 26.6 150 90 15
40 150 x 100 x 10 RSA 19.0 150 100 10
41 150 x 100 x 12 RSA 22.5 150 100 12
42 200 x 100 x 10 RSA 23.0 200 100 10
43 200 x 100 x 12 RSA 27.3 200 100 12
44 200 x 100 x 15 RSA 33.7 200 100 15
45 200 x 150 x 12 RSA 32.0 200 150 12

Fabrication services available

To simplify installation and reduce site labour, Liontek can provide:

  • Cut to length
  • Beam drilling
  • Connection plates
  • Base plates
  • Steel fabrication
  • Custom structural assemblies

How we work

Request a quotation

Send your dimensions, drawings or project requirements.

Review specifications

Our team prepares a tailored quotation and confirms technical details.

Fabrication and preparation

Materials are processed and prepared to specification.

Nationwide delivery

Your order is delivered directly to site anywhere in the UK.

FAQ

What are Universal Columns used for?

Universal Columns are primarily used as vertical load-bearing members in structural steel construction. They provide excellent strength and stability for steel frames, commercial buildings, warehouses and residential developments.

What is the difference between UC and UB sections?

Universal Columns are designed mainly for vertical load applications and feature a more balanced width-to-depth ratio. Universal Beams are typically used for horizontal load-bearing applications such as floor and roof structures.

Can Universal Columns be cut to length?

Yes. Liontek can supply Universal Columns cut to your required length, helping reduce on-site preparation and installation time.

Are Universal Columns available with fabrication services?

Yes. We offer cutting, drilling, connection plates, base plates and bespoke fabrication services depending on project requirements.

Do you deliver Universal Columns across the UK?

Yes. We provide reliable nationwide delivery for both individual steel sections and bulk project orders.