2100mm Catnic CG70/100 Cavity Wall Lintel

Catnic Cougar Open Back Cavity Wall Standard Duty Lintel – 2100mm (CG70/100)

The Catnic Cougar CG70 Open Back Cavity Wall Standard Duty Lintel – 2100mm (CG70/100) is a high-quality structural steel lintel engineered to provide dependable support over wider openings in cavity wall construction. Designed for cavity widths between 70mm and 100mm , this lintel is part of Catnic’s standard duty Cougar range, offering a robust and thermally effective solution for door and window apertures in both residential and light commercial projects.

Manufactured from galvanised steel with a durable powder-coated finish, the lintel delivers excellent corrosion resistance and long-term performance on site. Its open-back profile allows continuous masonry build-up of both the inner and outer leaves, ensuring consistent load distribution while simplifying installation.

An integrated thermal insulation core runs along the full length of the lintel, helping to reduce cold bridging across the cavity wall and improving the overall energy performance of the building envelope. Built-in features such as a damp proof course (DPC) and an integral plaster key further streamline installation and finishing, reducing the need for additional materials.

With a span of 2100mm , this Catnic Cougar lintel is particularly suitable for larger window openings, substantial doorway spans, and medium-wide cavity wall apertures where reliable structural support and thermal performance are essential. As part of the CG70/100 standard duty range, it supports uniform masonry loads as well as common timber floor and roof loads typical in standard builds.

Key Features

Catnic Cougar standard duty open back cavity wall lintel

Galvanised steel construction with powder-coated finish for corrosion resistance

Open-back profile for continuous masonry build-up

Integrated insulation core to reduce cold bridging

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

Suitable for cavity widths of 70mm – 100mm

Designed to support typical masonry, floor and roof loads in standard duty use

Specifications (Standardised Format)

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

Series: CG70/100

Length: 2100mm

Cavity Width Compatibility: 70mm – 100mm

Material: Galvanised steel with powder-coated finish

Profile Type: Open back cavity wall lintel

Insulation: Integrated thermal insulation core

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

Typical Use: Residential and light commercial cavity wall systems

Applications

Wide residential window spans

Larger door and patio opening support

Extensions and refurbishment projects

Brick and block cavity wall systems

Light commercial building applications