Parallel Flange Channel
Parallel Flange Channels
Designed for superior load-bearing performance, our universal beams ensure reliability and efficiency for all your construction projects.
- Available in a wide range of sizes
- Cut to length available
- Nationwide delivery
- Competitive trade pricing
Parallel flange channel is normally called a channel or a “C-section”. They are described by their depth, width and weight per metre in kilograms, eg. 150 x 75 x 18 PFC.
The PFC is used for columns, lintels above doors or simply a steel beam supporting floor joists. When used for lintels, they have a bottom plate welded to it that takes the outer bricks or 2 channels are bolted back to back with 100 mm spacers to support both leafs of a cavity wall.
Examples of products in our range
It’s simple – buy online, use the calculator or get in touch with our advisers.
Common applications for Parallel Flange Channels
Construction and Structural Framing
Infrastructure and Engineering Projects
Industrial Machinery and Equipment
Architectural and General Fabrication
PFC Size Chart (Parallel Flange
Channel available profiles and grades)
| No. | Type | Weight [kg/m] | Height [mm] | Width [mm] | Web thickness [mm] | Flange thickness [mm] |
|---|---|---|---|---|---|---|
| 01 | 100 x 50 x 10 PFC | 10.2 | 100 | 50 | 5.0 | 8.5 |
| 02 | 125 x 65 x 15 PFC | 14.8 | 125 | 65 | 5.5 | 9.5 |
| 03 | 150 x 75 x 18 PFC | 17.9 | 150 | 75 | 5.5 | 10.0 |
| 04 | 150 x 90 x 24 PFC | 23.9 | 150 | 90 | 6.5 | 12.0 |
| 05 | 180 x 75 x 20 PFC | 20.3 | 180 | 75 | 6.0 | 10.5 |
| 06 | 180 x 90 x 26 PFC | 26.1 | 180 | 90 | 6.5 | 12.5 |
| 07 | 200 x 75 x 23 PFC | 23.4 | 200 | 75 | 6.0 | 12.5 |
| 08 | 200 x 90 x 30 PFC | 29.7 | 200 | 90 | 7.0 | 14.0 |
| 09 | 230 x 75 x 26 PFC | 25.7 | 230 | 75 | 6.5 | 12.5 |
| 10 | 230 x 90 x 32 PFC | 32.2 | 230 | 90 | 7.5 | 14.0 |
| 11 | 260 x 75 x 28 PFC | 27.6 | 260 | 75 | 7.0 | 12.0 |
| 12 | 260 x 90 x 35 PFC | 34.8 | 260 | 90 | 8.0 | 14.0 |
| 13 | 300 x 90 x 41 PFC | 41.4 | 300 | 90 | 9.0 | 15.5 |
| 14 | 300 x 100 x 46 PFC | 45.5 | 300 | 100 | 9.0 | 16.5 |
| 15 | 380 x 100 x 54 PFC | 54.0 | 380 | 100 | 9.5 | 17.5 |
| 16 | 430 x 100 x 64 PFC | 64.4 | 430 | 100 | 11.0 | 19.0 |
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
A Parallel Flange Channel (PFC) is a C-shaped structural steel section with a flat web and two flanges that run parallel to each other. Sections are described by depth, width and weight per metre — for example, 150 x 75 x 18 PFC. The open profile leaves one face flat and the other clear, which makes the PFC useful wherever steel has to sit tight against masonry, timber or another member.
PFC sections are widely used as lintels above door and window openings, as beams supporting floor joists, and as columns, edge beams and trimmers in steel-framed structures. They are also common in fabrication work — stair stringers, machine frames, equipment bases and heavy brackets — and as purlins and girts in warehouses and industrial buildings.
For a single-leaf opening, a channel usually has a bottom plate welded to it so the outer brickwork can bear on the steel. For a cavity wall, two channels are commonly bolted back to back with 100 mm spacers between them, allowing both leaves of the wall to be supported by one assembly. We can supply either arrangement fabricated and ready to install.
A Universal Beam has an I-shaped section, symmetrical about its centre, and carries load equally on both sides of the web. A PFC is open on one side, giving a flat back and an accessible channel. Where a UB is the usual choice for a clear span, a PFC suits positions where one face needs to sit flush against another surface, or where the open profile makes connections and bolting easier.
Yes. We cut PFC to any length you specify and can drill holes to your setting-out, weld on bottom plates, end plates and base plates, make up back-to-back assemblies with spacers, and apply protective or decorative finishes before dispatch.
Older channel sections were rolled with tapered flanges, which meant bolts, packers and cleats had to be shimmed or shaped to sit square. Parallel flanges have a consistent thickness across their width, so fixings bed flat, connections go together without special washers, and fabrication is quicker and more accurate.








