Catnic 70mm Cavity Lintel CG70/100 by Catnic

Lintel Type : Cavity Lintels

Cavity Width : 70-85mm

Lintel Duty : Standard Duty

Thermally Broken : No

Wide Inner Leaf? No

Catnic

Catnic 70mm Cavity Lintel CG70/100

Name: Catnic 70mm Cavity Lintel CG70/100
Brand: Catnic
SKU: CG70/1000900
Price: 59.0 GBP
Availability: InStock
Rating: 4.8 (4 reviews)

£59.00

Cavity Lintel

£49.16 (ex VAT)

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Catnic CG70/100 Standard Duty Cavity Wall Lintel

The Catnic CG70/100 is a standard duty steel lintel for 70–85mm cavity wall construction with a 100–115mm inner leaf and 100–102mm outer leaf. Its open-back profile allows masonry to be built continuously on both the outer and inner leaves.

Manufactured from galvanised steel and supplied fully insulated, the CG70/100 features an integral plaster key and built-in DPC. It is designed to support typical masonry, distributed timber floor and roof loads found in most buildings and is suitable for fairfaced inner leaf masonry.

Key Features

Standard DutyDesigned for typical cavity wall masonry, timber floor and roof loads.

70–85mm CavitySuitable for 70–85mm cavity widths with a 100–115mm inner leaf.

Open-Back ProfileAllows masonry to be built continuously on both the outer and inner leaves.

Built-In DPCIntegrated DPC profile helps manage moisture entering the cavity.

Integral Plaster KeyProvides a key for internal plaster finishes.

Continuous InsulationHelps maximise thermal efficiency and minimise cold bridging at the opening.

Galvanised SteelManufactured from galvanised steel with Catnic's signature black powder-coated finish.

Fairfaced Inner LeafSuitable for fairfaced inner leaf masonry.

Dimensions & Specification

Manufacturer	Catnic
Product Code	CG70/100
Lintel Type	Standard Duty Cavity Wall Lintel
Wall Construction	Cavity wall
Outer Leaf	100–102mm
Cavity Width	70–85mm
Inner Leaf	100–115mm
Standard Lengths	900–3600mm in 300mm increments
Nominal Height	136mm at 900–1800mm; 155mm at 2100mm; 175mm at 2400mm; 215mm at 2700mm; 216mm at 3000–3600mm
Safe Working Load	15kN at 900–1500mm; 18kN at 1800mm; 20kN at 2100mm; 22kN at 2400mm; 26kN at 2700–3600mm
Finish	Galvanised steel with Catnic black powder coating
Insulation	Continuous integral insulation
Plaster Key	Integral
DPC	Built-in DPC profile

Typical Applications

The CG70/100 is designed for standard duty openings in cavity wall construction where the cavity is 70–85mm and the inner leaf is 100–115mm. It is suitable for typical uniformly distributed masonry loads and distributed timber floor and roof loads, including applications with fairfaced inner leaf masonry, subject to the project loading and installation requirements.

Installation & Technical Notes

150mm minimum end bearing: Catnic's published safe working load data is based on 150mm end bearings. Ensure the lintel is installed with the required bearing for the application.

Build both leaves together: Follow the manufacturer's installation guidance and ensure masonry is built correctly around the lintel.

Load selection: Safe working load varies by lintel length. Select the correct CG70/100 length using the manufacturer's load/span information for the project.

Technical suitability: Where loading conditions fall outside typical applications, obtain appropriate structural or manufacturer technical guidance before installation.

Why choose the Catnic CG70/100?

The CG70/100 combines standard duty structural support with practical cavity wall features including a built-in DPC, continuous insulation, integral plaster key and open-back profile. It is a suitable choice for standard duty applications where a 70–85mm cavity and 100–115mm inner leaf match the project specification.

Need help selecting the correct Catnic lintel? Speak to Wade's lintel team for technical guidance.

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