Lintel Type : Cavity Lintels
Lintel Duty : Extra Heavy Duty
Birtley
Birtley 100mm Internal Lintel SB100HDX Extra Heavy Duty
£100.00 (ex VAT)
Pickup available at Tipton West Midlands
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The Birtley SB100HDX 100mm Internal Lintel is an extra-heavy-duty steel box lintel designed for loadbearing internal walls built with 100mm blockwork and a plastered finish. The 1350mm version listed by Wade sits within Birtley's 750–1500mm length band, for which the manufacturer publishes a 60kN Safe Working Load (SWL). The lintel has a nominal section width of 95mm and a 140mm profile height at this length. An insulated version is also available from Birtley; confirm the required specification with Wade before ordering.
SB100HDX at a Glance
Key Features
Extra-heavy-duty performance
Designed for demanding loadbearing internal wall applications. Birtley publishes a 60kN SWL for lintel lengths from 750mm to 1500mm.
100mm internal block walls
Specified for 100mm internal block walls with a plastered finish.
95mm nominal section width
Birtley's section drawing gives a nominal lintel width of 95mm for the SB100HDX.
140mm profile height at 1350mm
The manufacturer's published profile height for the 750–1500mm length band is 140mm.
Supergalv hot-dip galvanised finish
Birtley's Supergalv coating is applied after fabrication to protect the steelwork, including cut edges and welds.
Insulated version available
Birtley lists an insulated version as an option. Contact Wade to confirm the version required for your project.
Product Specifications
| Manufacturer | Birtley |
|---|---|
| Product reference | SB100HDX |
| Lintel type | Extra-heavy-duty internal box lintel |
| Wall application | 100mm internal block walls (plastered) |
| Wade listed length | 1350mm |
| Product code | SB100HDX1350 |
| Nominal section width | 95mm |
| Profile height at 1350mm | 140mm |
| Published SWL for 750–1500mm band | 60kN |
| Published weight for 750–1500mm band | 11.7kg/m |
| Finish | Supergalv post-fabrication hot-dip galvanising, 65µm to BS EN 1461, as stated in Birtley's product guide |
| Insulation | Insulated version available; confirm specification when ordering |
| Product standard | BS EN 845-2 |
Published Load and Profile Information
Birtley's product guide gives the following figures for the SB100HDX:
| Length band | SWL (kN) | Weight (kg/m) | Height (mm) |
|---|---|---|---|
| 750–1500mm | 60 | 11.7 | 140 |
| 1650–2700mm | 60 | 15.1 | 215 |
Typical Applications
The SB100HDX is intended for openings in loadbearing internal walls formed from 100mm blockwork with a plastered finish. Its extra-heavy-duty classification and published SWL make correct specification important. Confirm the wall construction, opening span, bearing and load distribution against Birtley's technical information before selecting the lintel.
Installation Guidance
Birtley's general guidance for open-backed heavy-duty lintels states that the lintel must be fully filled with bonded masonry, built tightly against the vertical face of the lintel. The masonry should be fully cured before additional loads are imposed. The lintel should be fully bedded on bricklaying mortar, with sufficient time allowed for the mortar to cure before loading.
Technical Information
For the full load tables, section drawings, material information and installation guidance, refer to Birtley's product guide. The SB100HDX data is shown in the Internal Walls section.
Frequently Asked Questions
What is the Birtley SB100HDX designed for?
The SB100HDX is an extra-heavy-duty internal box lintel for loadbearing 100mm internal block walls with a plastered finish.
What length is supplied by Wade?
The current Wade listing is for the 1350mm length, product code SB100HDX1350.
What is the published safe working load for the 1350mm lintel?
Birtley's published data gives a 60kN Safe Working Load for lengths from 750mm to 1500mm. This is based on the manufacturer's uniformly distributed load assumptions and is not a point-load rating.
What are the section dimensions?
For the 750–1500mm length band, Birtley lists a 95mm nominal section width and a 140mm profile height.
Is an insulated version available?
Yes. Birtley notes that an insulated version is available. Contact Wade to confirm the required version before ordering.
Does the lintel need to be filled with masonry?
Birtley's general guidance for open-backed heavy-duty lintels states that the lintel must be fully filled with bonded masonry, built tightly against its vertical face, and the masonry must be fully cured before loading.
Need Help Specifying an Extra Heavy Duty Internal Lintel?
Contact Wade Building Supplies for help checking the 100mm block wall application, lintel dimensions and technical requirements for your opening.
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