1800mm Catnic CG70/100 Cavity Wall Lintel

Catnic Cougar Open Back Cavity Wall Standard Duty Lintel – 1800mm (CG70/100)

The Catnic Cougar CG70 Open Back Cavity Wall Standard Duty Lintel – 1800mm (CG70/100) is a high-quality structural steel lintel designed to provide dependable support over door and window openings in cavity wall construction. Engineered for standard duty applications, this lintel is suitable for cavity widths between 70mm and 100mm , making it ideal for many common UK residential and light commercial building projects.

Manufactured from galvanised steel with a durable powder-coated finish, the Catnic Cougar lintel offers excellent resistance to corrosion and long service life in demanding site conditions. Its open-back profile allows continuous construction of both the inner and outer masonry leaves, ensuring even load distribution while simplifying installation on site.

An integrated insulation core helps to reduce cold bridging across the cavity wall, improving the overall thermal efficiency of the building envelope and supporting compliance with modern energy efficiency standards. This lintel also incorporates a built-in damp proof course (DPC) and an integral plaster key , reducing the need for additional components and helping streamline finishing work.

With a span of 1800mm , this Catnic Cougar lintel is particularly suited to wider window openings, larger doorways, and patio door apertures where reliable structural performance and thermal efficiency are both required. It is designed to support typical masonry loads as well as standard timber floor and roof loads in cavity wall construction.

Key Features

Catnic Cougar open back cavity wall lintel for standard duty applications

Galvanised steel construction for strength and corrosion resistance

Powder-coated finish for long-term durability

Integrated insulation core to reduce thermal bridging

Built-in damp proof course (DPC) and plaster key

Open-back profile allows continuous inner and outer leaf masonry construction

Suitable for brickwork and blockwork cavity walls

Designed for residential and light commercial projects

Specifications (Standardised Format)

Product Name: Catnic Cougar Open Back Cavity Wall Standard Duty Lintel

Series: CG70/100

Length: 1800mm

Cavity Width Compatibility: 70mm – 100mm

Material: Galvanised steel

Finish: Powder coated

Insulation: Integrated thermal insulation core

Profile Type: Open back cavity wall lintel

Built-in Features: Damp proof course (DPC) and plaster key

Application: Structural support over door and window openings in cavity walls

Installation: Continuous inner and outer leaf masonry construction

Standards Compliance: Designed for standard duty masonry, floor and roof loads

Applications

Wide window openings

Large door and patio door spans

Residential new builds and extensions

Renovation and refurbishment projects

Brick and block cavity wall systems

Light commercial building applications