Steel Lintels

Our steel lintel range is the largest published range of lintels in the UK, consisting of standard leaf lintels, wide inner leaf, wide outer leaf, short outer leaf, box lintels rolled steel (RS/RSC or RSJ), closed eave, timber frame lintels and special lintels like arch and apex lintels.

Made in our factory in Leicestershire, Stressline steel lintels are the benchmark of structural building products. The comprehensive range means that whatever your building need, we will have the solution, and if you can’t see it in our brochure, our technical and development team can look to create a suitable product.

Our lintel brochure has comprehensive details about steel lintel loading spans in the loading tables provided, and our experienced teams can offer years of experience with regards to installation, specification and general product knowledge.

Standard
Leaf

Available in cavity sizes of 50, 70, 90, 110, 130 and 150mm.

APPLICATION
Standard and Heavy Duty (HD and HDX)
Designed to support:
• Masonry loads
• Masonry loads and uniformly distributed timber floor loads
• Uniformly distributed roof loads (in most cases HD lintel type is required)

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Wide Inner
Leaf (WIL)

Available in cavity sizes of 50, 70, 90, 110, 130 and 150mm.

APPLICATION
These lintels are suitable to support a 125-150mm inner leaf of blockwork.
Standard (WIL) and Heavy Duty (HD WIL and HDX WIL)
Designed to support:
• Masonry loads and uniformly distributed timber floor loads
• Uniformly distributed roof loads (in most cases HD lintel type is required)

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Wide Outer
Leaf (WOL)

Available in cavity sizes of 50, 70, 90, 110, 130 and 150mm.

APPLICATION
These lintels are suitable to support a 125-150mm outer leaf of blockwork or stonework.
Standard (WOL) and Heavy Duty (HD WOL and HDX WOL)
Designed to support:
• Masonry loads and uniformly distributed timber floor loads
• Uniformly distributed roof loads (in most cases HD lintel type is required)

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Short Outer
Leaf (SOL)

Available in cavity sizes of 50, 70, 90, 110, 130 and 150mm.

APPLICATION
These lintels are suitable to support a 75mm outer leaf of cant brick or 100mm wide decorative head detail.
These lintels are designed to support:
• Masonry loads and uniformly distributed timber floor loads
• Uniformly distributed roof loads (in most cases HD lintel type is required)

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Rolled Steel
Sections

Available in cavity sizes of 50, 70, 90, 110, 130 and 150mm.

APPLICATION
Rolled Steel (RS) and Rolled Steel Channel (RSC) fabricated lintels are designed for extreme loading conditions:
• Masonry loads
• Concrete floor loads
• Attic truss loads
• Point loads: compound trusses, steel beams, etc

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Closed
Eaves

Available in cavity sizes of 50, 90, and 130mm.

APPLICATION
Open Back Lintel (E)
Designed to support:
• Standard truss roof loads

Heavy Duty Box Section Lintel (E HD and E XHD)
Designed to support:
• Attic trusses
• Compound trusses

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Timber
Frame

Available in cavity sizes of 50, 70, and 90mm.

APPLICATION
Timber Frame Lintels (TF) are designed for use in timber frame construction and are intended to support the outer leaf of masonry only, generally brickwork.

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Single Leaf
Ext Solid Wall

APPLICATION
Meter Box (MB), Tray (TR) and Channel (CH)
Designed to support:
• 100mm external leaf solid blockwork
• 102mm external leaf brickwork
• 140mm external leaf solid blockwork
(MB WOL, TR WOL and/or CH WOL)

Find out more

Internal
Solid Wall

Available in cavity sizes of 100 and 140mm.

APPLICATION
Galvanised steel box lintels are designed to support:
• Concrete floor loads
• Masonry loads, timber floor joists and/or roof trusses
• Attic truss loads
• Point loads

Find out more

External
Solid Wall

APPLICATION
Galvanised steel box lintels are designed to support:
• Concrete floor loads
• Tile hanging
• Masonry loads
• Timber floor joists
• Attic truss loads and/or roof trusses
• Point loads: compound trusses, steel beams, etc
• SL200 BOX is designed to support 19:1 load ratio
• SL200 CH and SL200 ‘T’ are designed to support 1:1 load ratio

Find out more

Special
Lintels

Stressline special steel arch lintel
APPLICATION
Stressline Special Lintels are designed and manufactured to suit the most innovative of window designs and styles including:
• Semi-circular arch
• Segmental arch
• Parabolic arch
• Gothic arch
• Venetian arch
• Apex lintel
• Corner lintel
• Splayed bay lintel
• Square bay lintels

Find out more
 

FAQs

Stressline has an on-going commitment to improving both product and management systems:
  • BSI Quality Assurance Accreditation to ISO 9001
  • BS EN ISO 9001
All of our products are delivered on flat bed articulated or rigid lorries, with the option of either self offload or crane offload. Steel lintels can be packaged in stock packs or consignment loads.
The standard lead time is 3-8 working days for most areas of the UK.
Yes you can, however you must ensure you adhere to our requirements for collect orders. For more information you can download the collect orders PDF from the downloads page. The lead time for collect orders is 24 hours.
Yes we do. They are a great option for low rise arches. You can find out more information in our downloadable lintel guide.
Yes we do. Our comprehensive steel price guide is downloadable from the downloads page.
When specifying steel lintels you are invited to contact our specification team who will be more than happy to assist in the specification.

The NBS reference of F30 Accessories and sundry items for brick, block and stone walling – Clause 755: Prefabricated steel lintels applies for steel lintels. Our lintels are galvanised steel lintels manufactured to the British Standard BS EN 10346.

Stressline standard galvanised steel lintels are manufactured from DX51D grade steel to BS EN 10346:2006, with a zinc coating type Z600, giving a minimum zinc coating of 600g/m² per two sides. All cut edges are treated with corrosion resistant paint. RS and RSC lintels are manufactured with a 6mm welded bottom plate to BS EN 10025 – 2: 2004 of steel grade S275.
The loadings published in the load-span tables were achieved in accordance with BS EN 845-2 and tested in accordance with BS EN 846-9. Stated figures represent the Total Serviceable Uniform Distributed Load (UDL) in kN. ‘CXHD’ and ‘CH’ type lintels have been tested compositely in accordance with BS EN 846-9 with the surrounding masonry built in accordance with BS 5628. The structural performance of our lintels is supported by continuous in-house testing.
Whilst we can make recommendations for our steel lintel range, please note that this does not discharge the installer from the responsibility of ensuring the bearing pressures of the masonry are not exceeded. Please contact our technical team for more advice on installation.

The minimum recommended bearing length is 150mm. The lintel should be bedded on mortar and levelled both along the lintel and across its width.

The lintel should always be examined for damage prior to installation. All external wall lintels MUST be installed with a damp proof course (DPC) or cavity tray.

For more information and advice on installation, please download our full lintel brochure.

We produce, sell and deliver a variety of structural building products including concrete lintels, flooring products, walling and fencing, cast stone and precast sections. You can find more information on the relevant section of the website.
Our lintel guide is the definitive guide to all things lintel – steel and concrete including the load spans. Simply go to the downloads page to download the latest brochure.
Yes we do. We are an accredited RIBA CPD network provider, and offer specifiers a presentation entitled Lintel intel – specifying lintels for new homes and RMI.

If you would like to register your interest or find out more email andrew.sanderson@stressline.net

Stressline’s steel lintel range is the largest published range of steel lintels in the UK. They are easy to install and suitable for a vast array of building applications.

Most lintel groups are available in standard, HD (heavy duty), XHD or HDX (extra heavy duty) or CXHD (composite extra heavy duty), but if you have a specific requirement, our technical and development teams can investigate producing a solution for your individual needs.

Steel lintels offer excellent thermal efficiency, but we have a hybrid steel-concrete lintel combination that can offer near perfect thermal efficiency.

For full details of our steel lintel range, and access to the steel lintel load spans you can download the lintel brochure, or full lintel prices, download our steel lintel price list. Both are available via our downloads page.