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Lintel Specifications

Technical Data

Installation Information

Prior to installation of steel lintels you should be aware of some important considerations:

Steel lintels are designed to carry vertical loads to the support points. No responsibility is taken by Steelite Specials for the bearing capacity of the supporting wall panel. This should be checked by the Consulting Engineer who certifies the building project.

Steel lintels transfer loads locally. However lateral loading, bracing and overall stability of the building are not the remit of Steelite Specials. The overall stability of the building is the responsibility of your Consulting Engineer.

While a reasonable effort is made to assist the Client with regard to suitability and specification of lintel types, it is the responsibility of the Consulting Engineer who certifies the building project to take responsibility for the lintel specification and installation.

Floor and roof loads should be provided by your Consulting Engineer.

Steelite Specials do not take responsibility for discrepancies which may occur between dimensions on drawings and dimensions supplied by the Builder on site.

Correct installation of lintels is vital. Please refer to link below for correct method of installation.

Should you have any queries regarding the above please do not hesitate to contact us.

For detailed installation instructions see our Installation Page


    Steelite Lintels are used to provide support to vertical loads from walls, columns, floors and roofs or a combination of these, above window or door openings.

lintel design | ireland

Steelite lintels have adequate strength and stiffness to sustain the uniformly distributed working loads as shown in the tables, provided that the defined clear spans, load ratios and loading eccentricities are not exceeded.

Concentrated loads may be applied, subject to the following:

1: Concentrated loads must spread through at least two courses (150mm) of brickwork or an equivalent height of blockwork

2: The eccentricity of a concentrated load must be such that its effect does not exceed that created by applying the load at the centre of the leaf of the wall being loaded, without exceeding the stated load ratios.

3: The total applied loading must not produce bending movements, shear forces or reactions greater than those produced by the uniformly distributed loads specified.

The specified loads in the tables relate to simply supported lintels, laterally and horizontally unrestrained.

In addition, buildings subject to relevant requirements to the building regulations should be constructed in accordance with EN 1996-2:2006 Code of Practice for the Use of Masonry.

Guidance on the assessment of loads on lintels is given in B.S.5977:Part 1:1981(1986) Method of Assessment of Load.


The Service life of the lintel will not be less than that anticipated for the building within which they are used, when properly installed and within the humidity and condensation conditions normally experienced in a habitable building.

steel lintel manufacture Ireland

Steelite Lintels are manufactured from galvanised steel to EN 10346:2009 with a zinc coating weight of 600g/m (Z600).

The expanded polystyrene has a density of 20Kg/m. Minimum thickness of insulation is 60mm, in accordance with building regulations.

Stainless steel lintels, formed from Austenitic Chromium Nickel Steel to EN 10088 (304)2, can be provided on request. Contact our sales line to discuss your requirements or receive a quotation.


Where different total uniformly distributed loads are shown in the tables, the following load ratios apply:

  • Load Ratio 1: Applies to an outer to inner ratio of 1:1 to 1:3.
  • Load Ratio 2: Applies to an outer to inner ratio of 1:3 to 1:19.

It is the policy within Steelite to carry out load tests and quality control as part of its ongoing product development.

lintel design | ireland
  • Higher Thermal Value.
  • Insulation fills the shape of the lintel.
  • Continuous width insulation in cavity unlike other lintel types, therefore no cold barrier.
  • Minimum thickness of insulation is 60mm.
  • Satisfies Building Regulations.
  • Contains no C.F.C. gases
Fire Test
lintel fire performance

The Steelite lintel has been subjected to a fire test by the Warrington Fire Research Station. A one hour fire requirement was achieved. It is the first Irish manufactured lintel to achieve this standard.

Thermal Performance
lintel thermal performance

Steelite Lintels have been assessed for their effect on the thermal performance of a building resulting in a Psi value of 0.24W/mK for our standard 100mm cavity wall lintel. Psi values vary with selected lintel, cavity width and wall construction.