The Catnic CG90/100 Cavity Wall Lintel is a robust galvanised steel lintel engineered for cavity wall construction, suitable for cavities between 90mm and 105mm. It is designed to support inner leaves ranging from 100mm to 115mm and outer leaves from 100mm to 102mm, making it ideal for standard duty applications in domestic and light commercial buildings. The lintel offers lengths from 750mm to 3600mm and a unit weight range of 4,590g to 47,230g depending on the length. Its galvanised steel construction ensures excellent corrosion resistance. For optimal stability and load distribution, a minimum of 150mm end bearing on both sides is recommended. Installation is streamlined with the ability to raise both inner and outer leaves simultaneously. A block course should be laid prior to installing flooring or roof elements for enhanced structural performance. Key features include its galvanised steel build, suitability for 90-105mm cavity walls, support for specific inner and outer leaf dimensions, and a standard duty load-bearing capacity. The Open Back Cougar Lintels also incorporate insulation, a built-in plaster key, and a DPC, supporting masonry loads, timber floors, and roof loads. They are suitable for fair-faced inner leaf masonry. The lintels benefit from duplex corrosion protection, a built-in DPC, integral plaster key, and integral insulation, formed from galvanised steel and then powder coated for durability. Standard lengths are available in 150mm increments up to 3000mm, and 300mm increments from 3000mm to 3600mm. It is also described as a steel lintel designed for 90mm standard duty masonry cavity walls, fully insulated, featuring an integral plaster key and a black powder coating.