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Cavity Lintels

Cavity Lintels

At Wade, we can supply a wide range of cavity lintels from Stressline, Birtley and Catnic, in standard, medium, heavy and extra-heavy-duty, and thermally broken Part L compliant. Wade can supply steel lintels from 900mm to 3.6m and cavity sizes ranging from 50mm to 150mm.

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Wade Building Supplies 50mm Cavity Wall Lintel | Standard Duty
£0.00 - £0.00
£0.00
£34.00 - £367.00
£34.00 - £367.00
£34.00

Stressline Standard Duty 50mm Cavity Lintel SL50

Stressline
In stock

Our Standard Leaf Stressline Steel Lintels are available in a Selection of Sizes and designed to Support Masonry Loads and Distributed Timber Floor...

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£0.00 - £0.00
£0.00
£34.00 - £367.00
£34.00 - £367.00
£34.00
Wade Building Supplies 50mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£74.00 - £499.00
£74.00 - £499.00
£74.00

Stressline Medium Duty 50mm Cavity Lintel SL50HD

Stressline

Our Medium Duty Steel Lintel is available in a Selection of Sizes and is designed to Support Masonry Loads, Distributed Timber Floor Loads & Di...

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£0.00 - £0.00
£0.00
£74.00 - £499.00
£74.00 - £499.00
£74.00
Wade Building Supplies 50mm Cavity Wall Lintel | Heavy Duty
£0.00 - £0.00
£0.00
£103.00 - £386.00
£103.00 - £386.00
£103.00

Stressline Heavy Duty 50mm Cavity Lintel SL50XHD225

Stressline

Our Heavy Duty Steel Lintel is available in a Selection of Sizes Designed to Support Concrete Floor Loads, Attic Truss Loads, and Point Loads   It ...

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£0.00 - £0.00
£0.00
£103.00 - £386.00
£103.00 - £386.00
£103.00
Wade Building Supplies 50mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£135.00 - £588.00
£135.00 - £588.00
£135.00

Stressline Extra Heavy Duty 50mm Cavity Lintel SL50CXHD225

Stressline
In stock

Our Extra Heavy Duty Steel Lintel is available in a Selection of Sizes Designed to Support Masonry Loads, Distributed Timber Floor Loads & Dist...

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£0.00 - £0.00
£0.00
£135.00 - £588.00
£135.00 - £588.00
£135.00
£0.00 - £0.00
£0.00
£41.00 - £400.00
£41.00 - £400.00
£41.00

Stressline Standard Duty 70mm Cavity Lintel SL70

Stressline
In stock

The Standard Leaf Stressline Lintel is available in a Selection of Sizes Designed to Support Masonry Loads, Distributed Timber Floor Loads & Di...

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£0.00 - £0.00
£0.00
£41.00 - £400.00
£41.00 - £400.00
£41.00
Wade Building Supplies 70mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£74.00 - £499.00
£74.00 - £499.00
£74.00

Stressline Medium Duty 70mm Cavity Lintel SL70HD

Stressline

Our Medium Duty Cavity Lintel is available in a Selection of Sizes This Lintel is designed to Support Masonry Loads, Distributed Timber Floor Loads...

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£0.00 - £0.00
£0.00
£74.00 - £499.00
£74.00 - £499.00
£74.00
Wade Building Supplies 70mm Cavity Wall Lintel | Heavy Duty
£0.00 - £0.00
£0.00
£114.00 - £386.00
£114.00 - £386.00
£114.00

Stressline Heavy Duty 70mm Cavity Lintel SL70XHD225

Stressline

Heavy Duty Cavity Lintels is available in a Selection of Sizes and is designed to Support Concrete & Attic Truss Loads   Ensure that the inner ...

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£0.00 - £0.00
£0.00
£114.00 - £386.00
£114.00 - £386.00
£114.00
Wade Building Supplies 70mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£122.00 - £574.00
£122.00 - £574.00
£122.00

Stressline Extra Heavy Duty 70mm Cavity Lintel SL70CXHD225

Stressline
In stock

Extra Heavy Duty Cavity Lintels are available in a Selection of Sizes Designed to Support Concrete & Attic Truss Loads   Ensure that the inner ...

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£0.00 - £0.00
£0.00
£122.00 - £574.00
£122.00 - £574.00
£122.00
Wade Building Supplies 100mm Cavity Wall Lintel | Standard Duty
£0.00 - £0.00
£0.00
£30.00 - £367.00
£30.00 - £367.00
£30.00

Stressline Standard Duty 100mm Cavity Lintel SL90

Stressline
In stock

Our Standard Leaf Stressline Lintel is available in a Selection of Sizes and is designed to Support Masonry Loads, Distributed Timber Floor Loads &...

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£0.00 - £0.00
£0.00
£30.00 - £367.00
£30.00 - £367.00
£30.00
Wade Building Supplies 100mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£95.00 - £574.00
£95.00 - £574.00
£95.00

Stressline Medium Duty 100mm Cavity Lintel SL90HD

Stressline

Our Selection of Lintels for Cavity Walls includes the Stressline Medium Duty Lintel designed to Support Masonry Loads, Distributed Timber Floor Lo...

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£0.00 - £0.00
£0.00
£95.00 - £574.00
£95.00 - £574.00
£95.00
Stressline Heavy Duty 100mm Cavity Wall Lintel
£0.00 - £0.00
£0.00
£117.00 - £466.00
£117.00 - £466.00
£117.00

Stressline Heavy Duty 100mm Cavity Lintel SL90XHD225

Stressline

The SL90XHD225 Heavy Duty Cavity Lintel boasts simple installation and functionality across a range of uses, with the ability to uphold concrete fl...

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£0.00 - £0.00
£0.00
£117.00 - £466.00
£117.00 - £466.00
£117.00
Wade Building Supplies 100mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£100.00 - £667.00
£100.00 - £667.00
£100.00

Stressline Extra Heavy Duty 100mm Cavity Lintel SL90CXHD225

Stressline
In stock

100mm Cavity Lintels are easy to install and suitable for a variety of installation This Lintel is able to Support Concrete Floor Loads,  Masonry L...

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£0.00 - £0.00
£0.00
£100.00 - £667.00
£100.00 - £667.00
£100.00
Wade Building Supplies 125mm Cavity Wall Lintel | Standard Duty
£0.00 - £0.00
£0.00
£66.00 - £420.00
£66.00 - £420.00
£66.00

Stressline SL110 Standard Duty 125mm Cavity Lintel

Stressline
In stock

Easy to install and Suitable for a Variety of Applications.  Always Check Loadings against Load Span Tables - Our Technical Team will happily help ...

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£0.00 - £0.00
£0.00
£66.00 - £420.00
£66.00 - £420.00
£66.00
Wade Building Supplies 125mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£90.00 - £546.00
£90.00 - £546.00
£90.00

Stressline Medium Duty 125mm Cavity Lintel SL110HD

Stressline

This Cavity Wall Lintel is Easy to install and Suitable for a Variety of Applications.  Designed to Support Masonry Loads, Distributed Timber &...

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£0.00 - £0.00
£0.00
£90.00 - £546.00
£90.00 - £546.00
£90.00
Wade Building Supplies 125mm Cavity Wall Lintel | Heavy Duty
£0.00 - £0.00
£0.00
£133.00 - £475.00
£133.00 - £475.00
£133.00

Stressline Heavy Duty 125mm Cavity Lintel SL110XHD225

Stressline

Stressline Heavy Duty Cavity Lintels are easy to install and suitable for a variety of installations.  This Lintel is able to Support Concrete Floo...

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£0.00 - £0.00
£0.00
£133.00 - £475.00
£133.00 - £475.00
£133.00
Wade Building Supplies 125mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£122.00 - £703.00
£122.00 - £703.00
£122.00

Stressline Extra Heavy Duty 125mm Cavity Lintel SL110CXHD225

Stressline

Cavity Wall 110 - 125mm lintel is Designed to  Support Concrete Floor Loads, Attic Trusses, Point Loads It offers Thermal efficiency and Built-in i...

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£0.00 - £0.00
£0.00
£122.00 - £703.00
£122.00 - £703.00
£122.00
£0.00 - £0.00
£0.00
£60.00 - £528.00
£60.00 - £528.00
£60.00

Stressline Standard Duty 130mm Cavity Lintel SL130

Stressline

Elevate your construction projects with our Stressline Standard Duty 130mm Cavity Lintel SL130. Designed for easy installation and suitable for a ...

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£0.00 - £0.00
£0.00
£60.00 - £528.00
£60.00 - £528.00
£60.00
Wade Building Supplies 130mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£119.00 - £652.00
£119.00 - £652.00
£119.00

Stressline Medium Duty 130mm Cavity Lintel SL130HD

Stressline

Galvanised Steel for Longer Durable Life - Easy to Install with Built-in Plaster Key Designed to Support Masonry Loads, Distributed Timber & Ro...

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£0.00 - £0.00
£0.00
£119.00 - £652.00
£119.00 - £652.00
£119.00
Wade Building Supplies 130mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£106.00 - £656.00
£106.00 - £656.00
£106.00

Stressline Extra Heavy Duty 130mm Cavity Lintel SL130CXHD225

Stressline

 Extra Heavy Duty Lintel in Sizes to 5100mm.   Premium Quality Galvanised Steel suitable for Concrete Floor Loads and Attic Trusses  Market Leading...

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£0.00 - £0.00
£0.00
£106.00 - £656.00
£106.00 - £656.00
£106.00
Wade Building Supplies 150mm Cavity Wall Lintel | Standard Duty
£0.00 - £0.00
£0.00
£53.00 - £468.00
£53.00 - £468.00
£53.00

Stressline Standard Duty 150mm Cavity Lintel SL150

Stressline
In stock

Discover superior support for your construction needs with our Stressline Standard Duty 150mm Cavity Lintel SL150. Tailored for masonry loads, this...

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£0.00 - £0.00
£0.00
£53.00 - £468.00
£53.00 - £468.00
£53.00
Wade Building Supplies 150mm Cavity Wall Lintel | Medium Duty
£0.00 - £0.00
£0.00
£139.00 - £722.00
£139.00 - £722.00
£139.00

Stressline Medium Duty 150mm Cavity Lintel SL150HD

Stressline

Easy to Install the Medium Duty 150mm Cavity Lintel is Designed to Support Masonry Loads, Distributed Timber & Roof Loads  Galvanised Coating w...

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£0.00 - £0.00
£0.00
£139.00 - £722.00
£139.00 - £722.00
£139.00
Wade Building Supplies 150mm Cavity Wall Lintel | Extra Heavy Duty
£0.00 - £0.00
£0.00
£140.00 - £780.00
£140.00 - £780.00
£140.00

Stressline Extra Heavy Duty 150mm Cavity Lintel SL150CXHD225

Stressline
In stock

Steel Cavity Lintel ideal for Heavy-Duty Loads including Attic Trusses, and Concrete Floor Loads.  Extra Heavy Duty Lintel in Sizes 600mm - 5100mm....

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£0.00 - £0.00
£0.00
£140.00 - £780.00
£140.00 - £780.00
£140.00
Wade Building Supplies 100mm Wide Inner Leaf Cavity | Standard Duty
£0.00 - £0.00
£0.00
£96.00 - £820.00
£96.00 - £820.00
£96.00

Stressline Standard Duty 100mm Cavity (140mm wide inner leaf) Lintel SL90WIL

Stressline

Wide Inner Leaf Lintels are designed with an Inner Leaf to support Blockwork up to 150mm.  This Lintel is easy to install and will support Masonry...

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£0.00 - £0.00
£0.00
£96.00 - £820.00
£96.00 - £820.00
£96.00
Wade Building Supplies 100mm Wide Inner Leaf Cavity | Medium Duty
£0.00 - £0.00
£0.00
£156.00 - £735.00
£156.00 - £735.00
£156.00

Stressline Medium Duty 100mm Cavity (140mm wide inner leaf) Lintel SL90HDWIL

Stressline

Stressline SL90 Wide Inner Leaf Lintel Easy to install and will support Masonry Loads, Distributed Timber Floor Loads and Distributed Roof Loads. W...

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£0.00 - £0.00
£0.00
£156.00 - £735.00
£156.00 - £735.00
£156.00
Wade Building Supplies 125mm Wide Inner Leaf Cavity | Standard Duty
£0.00 - £0.00
£0.00
£99.00 - £861.00
£99.00 - £861.00
£99.00

Stressline Standard Duty 125mm Cavity (140mm wide inner leaf) Lintel SL110WIL

Stressline

Our most Popular Inner Leaf Cavity includes Built-in Plaster Key with perforated Base Plate to Inner Flange  Market Leading Thermal Efficiency with...

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£0.00 - £0.00
£0.00
£99.00 - £861.00
£99.00 - £861.00
£99.00
Wade Building Supplies 125mm Wide Inner Leaf Cavity | Medium Duty
£0.00 - £0.00
£0.00
£144.00 - £705.00
£144.00 - £705.00
£144.00

Stressline Medium Duty 125mm Cavity (140mm wide inner leaf) Lintel SL110HDWIL

Stressline

Cavity Lintel Designed to Support Blockwork up to 150mm.  Easy to install and will Support Masonry Loads, Distributed Timber Floor Loads and Distri...

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£0.00 - £0.00
£0.00
£144.00 - £705.00
£144.00 - £705.00
£144.00

Steel Cavity Wall Lintels

Steel cavity lintels are the top choice for traditionally built brick and blockwork construction projects. The lintels sit invisibly behind the external brickwork while supporting the structure.

Infilled with a polystyrene filler, they reduce condensation and cold bridging too. It is usual for the performance of the steel cavity lintels required on a construction site to be specified by the contractor or client’s architect or structural engineer.

Here’s our brief guide to where to use steel cavity wall lintels.

Lintel Strength

Steel lintels for cavity walls work well because they are generally much stronger than pre-stressed concrete lintels over larger spans. If your opening is greater than 1500mm (4’ 9”), then you will need to use a steel lintel.

Standard Lintels

Use a standard lintel for any door or window opening without secondary loads, such as joist ends for timber floor structures. The rule to follow is triangulation.

If there is a minimum of 600mm (2 feet) of brickwork to each side of the opening and no obstructions above, then a standard lintel should be able to support the triangle of masonry directly above.

Heavy Duty Lintels

If you cannot make up a clear triangle over the opening then your lintel will have to take the entire load of all the masonry overhead. If there isn’t 600mm to either side of the opening, then a heavier-duty lintel should be specified.

A heavy-duty lintel is usually required when the masonry wall is supporting a concrete floor, timber joist ends, attic trusses, or where the opening required is wider than a standard window size.

Your architect or structural engineer should be able to flag up any requirement to go for a heavier specification.

Part L Thermal Break Lintels

Thermal break lintels from Catnic separate the cavity wall masonry leaves, which minimises heat transfer and makes them fully compliant with the Part L energy loss regulations. Simple, yet effective, they are available in standard and heavy-duty specifications.

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