Catnic Open Back Cavity Wall Extra Heavy Duty Lintel 4200mm CX90/100

Open Back Lintels are for use in Cavity Wall construction. The lintels incorporate insulation, built-in plaster key and DPC. The lintels supports uniform distribution of masonry loads, timber floors and roof loads. Also suitable for fair faced inner leaf masonry. Duplex Corrosion Protection Built-in DPC. Restraint clips. Standard lengths are available in 150mm increments up to 3000mm, 300mm at lengths from 3000mm - 4800mm (including 4570mm but excluding 4500mm). Must be suitably propped during construction. For use in timber frame construction.