Standard Leaf Steel Lintels

Stressline standard leaf steel lintels are the benchmark in load bearing steel lintel manufacturing. These lintels are designed to support masonry loads, masonry loads and uniformly distributed timber floor loads, and uniformly distributed roof loads, although in most cases an HD (heavy duty) type is required.

The steel lintel is easy to install and the galvanised finish means a tough and durable product, boasting impressive thermal efficiency. Our most common variants are the Stressline SL90 and SL110 products suitable for cavity walls on 90 and 110mm respectively. Each type has HD, XHD (extra heavy duty) and CXHD (composite extra heavy duty) variants, please see our steel lintel load tables for more information.

All of our lintels are available at various lengths starting at 600mm. For more information on standard steel lintel sizes and prices please download the brochure section below. For the full brochure you can download it from our downloads page.

Stressline standard steel lintel


Stressline standard leaf steel lintels are designed to support:

  • Masonry loads
  • Masonry loads and uniformly distributed timber floor loads
  • Uniformly distributed roof loads (HD lintel usually required)

Standard leaf lintels are available in 6 cavity sizes – 50mm, 70mm, 90mm, 110mm, 130mm and 150mm. The outer leaf is designed for 100mm brick or blockwork and the inner leaf for between 100mm and 115mm.


Our standard leaf lintels are easy to install and can be used for many different applications. Because they are made from galvanised steel they are durable and have a very long life.

If offers excellent thermal efficiency with built-in continuous insulation.

Standard leaf lintels also have a built-in plaster key or a perforated base plate to inner flange.

Standard leaf steel lintel load span tables

To download our standard leaf steel lintel load span tables, please click the button below. This brochure section has details of our standard steel lintels only. To download the full brochure, please navigate to our downloads page. For more information on our standard steel lintel lintel prices, please download our steel lintel price guide or contact your local ASM – you can see who that is on our ‘who to contact’ page or email us directly.