How To Choose Steel Lintels

A lintel is required to support a load to have an opening like a door or window in a load-bearing wall. These lintels are often made from steel because of their strength, flexibility, and ease of use. 

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Steel Lintel Product

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When choosing the right steel lintels for your construction, you need to know these things:

  1. How is it constructed?

What construction is it that you need a steel lintel? It could be any of the following:

Cavity Wall

You will need to know the dimensions of a cavity wall if you have one.

  • External leaf dimension

  • Dimension of the cavity including insulation

  • Internal leaf dimension

Timber frame

You will need a steel lintel to support a timber frame cavity wall.

  • External leaf dimension

  • Dimensions of the Cavity

Internal Partitions and Solid Walls

There are three types of steel lintels available for interior walls and partitions:

  • Non-load bearing applications: Corrugated Lintels

  • For loadings that involve floor joists and blockwork, channel section lintels are used

  • Box lintels are used for heavy loads, including point loads, and larger openings

External solid walls

There are three types of steel lintels available for external solid walls.

  • Single-leaf lintels for one leaf of brickwork

  • Two-piece lintels designed to carry two leaves from a 215mm fair brick wall.

  • Box lintels with a toe that can be used in brick walls or blocks from 200 – 215mm in thickness

2. How long is the steel lintel?

It all depends on the width of the opening that the steel lintel is to span. Measure the opening in the structure and the distance between the masonry supports. To calculate the length of the steel lintel, you will need to measure the opening and the clear span between the masonry supports.