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Description The HDX50 is an extra heavy-duty lintel designed for cavity walls with a cavity size of 50-65mm , and it accommodates 100mm outer and inner leafs . This lintel is engineered for substantial structural loads and is ideal for use where enhanced durability and support are required. It must have solid, fully jointed blockwork infill to the inner leaf to achieve the stated load-bearing performance. Key Features: Cavity Size: 50-65mm. Outer and Inner Leaf Width: 100mm. Material: Mild Steel S275JR to BS EN10025-2:2004. Supergalv Coating: Provides superior life expectancy, with post-fabrication galvanization ensuring no surface has inferior paint protection. No Baseplate: Lack of baseplate and factory-fitted insulation reduces thermal bridging, improving the lintel’s thermal performance.