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Description The Catnic CX110/100 is an extra heavy-duty steel lintel designed for 110mm cavity wall construction . It is built to support extra heavy masonry , timber floor , and roof loads commonly found in robust buildings. The open-back profile facilitates continuous masonry construction on both the inner and outer leaves. Key Features: 110mm Cavity Wall : Built for extra heavy-duty 110mm cavity wall constructions. Open-Back Profile : Enables continuous building on both the inner and outer masonry leaves. Galvanised Steel : Ensures durability and protection against corrosion. Fully Insulated : Supplied with insulation to improve thermal efficiency. Integral Plaster Key : Allows for seamless plastering of the inner leaf. Black Powder Coating : Provides additional protection with Catnic's signature finish.