Lintel Type : Cavity Lintels
Cavity Width : 70-85mm
Lintel Duty : Medium Duty
Thermally Broken : No
Wide Inner Leaf? No
Stressline
Stressline Medium Duty 70mm Cavity Lintel SL70HD
£91.66 (ex VAT)
Pickup available at Tipton West Midlands
Usually ready in 4 hours
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The Stressline Medium Duty 70mm Cavity Lintel SL70HD is a galvanised steel cavity wall lintel designed for cavity widths of 70–85mm, with a 100mm outer leaf and a 100–115mm inner leaf. It is designed to support masonry loads, uniformly distributed timber floor loads and uniformly distributed roof loads, subject to the manufacturer's load-span guidance. The lintel incorporates integral insulation, a perforated base plate to the inner flange and a built-in plaster key. Available in 12 lengths from 1200mm to 4200mm, the SL70HD is intended for suitable openings where a medium-duty lintel is specified.
Key Features
70–85mm cavity
Designed for cavity widths between 70mm and 85mm.
100mm outer leaf
Specified for a 100mm outer leaf of brickwork or blockwork.
100–115mm inner leaf
Designed for an inner leaf thickness between 100mm and 115mm.
Medium-duty loading
Designed for masonry loads, uniformly distributed timber floor loads and uniformly distributed roof loads, subject to load-span limits.
Integral insulation
Insulation is incorporated into the lintel construction to help improve thermal performance.
Perforated base plate
Features a perforated base plate to the inner flange.
Built-in plaster key
Provides a key for the internal plaster finish.
Galvanised steel
Galvanised steel construction provides a durable protective finish.
12 length options
Available in lengths from 1200mm to 4200mm.
Product Specifications
| Manufacturer | Stressline |
|---|---|
| Product code | SL70HD |
| Lintel type | Medium-duty cavity wall lintel |
| Cavity width | 70–85mm |
| Outer leaf | 100mm |
| Inner leaf | 100–115mm |
| Material and finish | Galvanised steel |
| Features | Integral insulation, perforated base plate to inner flange and built-in plaster key |
| Listed load applications | Masonry loads, uniformly distributed timber floor loads and uniformly distributed roof loads |
| Available lengths | 1200mm, 1350mm, 1500mm, 1800mm, 2100mm, 2400mm, 2700mm, 3000mm, 3300mm, 3600mm, 3900mm and 4200mm |
Typical Applications
The SL70HD is intended for suitable openings in cavity wall construction with a 100mm outer leaf, 70–85mm cavity and 100–115mm inner leaf. Stressline lists masonry loads, uniformly distributed timber floor loads and uniformly distributed roof loads as applications. The correct lintel depends on the opening span, wall construction, supported loads and bearing conditions. Check the manufacturer's load-span information before selecting a length.
Technical Information
Technical specification images are available in the product media above. Refer to these and Stressline's current technical information for dimensions, load-span details and installation guidance.
Frequently Asked Questions
What cavity size is the SL70HD designed for?
It is designed for a 70–85mm cavity, with a 100mm outer leaf and a 100–115mm inner leaf.
What loads can the SL70HD support?
Stressline lists masonry loads, uniformly distributed timber floor loads and uniformly distributed roof loads. Check the load-span tables for the selected length and actual loading arrangement.
Can the SL70HD support precast concrete floors or attic trusses?
No. Stressline's product guidance states that the SL70HD is not suitable for precast concrete floors, attic trusses or heavy point loads.
Does it include insulation and a plaster key?
Yes. It incorporates integral insulation, a perforated base plate to the inner flange and a built-in plaster key.
What lengths are available?
The current Shopify listing offers 12 lengths from 1200mm to 4200mm.
Need Help Choosing a Medium Duty 70mm Cavity Lintel?
Contact Wade Building Supplies for help checking cavity dimensions, lintel length, loading information and the right specification for your project.
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