Timber Frame Steel Lintels

Naturally, timber frame steel lintels are designed for timber frame construction and intended to support the outer leaf of masonry only. HD (heavy duty) versions are available.

The timber frame steel lintel is easy to install and like our other main lintels has a galvanised finish. Timber frame (or TF) lintels are available in 50mm 70mm and 90mm variants. They can be manufactured to suit WOL (wide outer leaf) and SOL (short outer leaf) applications. Please see our steel lintel load tables for more information.

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

Timber frame steel lintel


Stressline Timber Frame (TF) lintels are designed for timber frame construction only.

They are available in 3 cavity sizes – 50mm, 70mm, and 90mm, with all three having HD variants available. The outer leaf is designed for 100mm brick or blockwork with no inner leaf. Restraining clips are supplied as standard.


TF lintels are easy to install and suitable for a number of applications. They can be manufactured to suit WOL (wide outer leaf) or SOL (short outer leaf) applications and are made of the same galvanised material to ensure a robust finish.

Timber frame steel lintel load span tables

To download our timber frame steel lintel load span tables, please click the button below. This brochure section has details of our TF steel lintels only. To download the full brochure, please navigate to our downloads page. For more information on our steel 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.