Standard Duty Cavity Wall Lintel with Expanded Polystyrene. Special features include lack of baseplate and factory fitted insulation; which reduces thermal bridging and post-fabrication galvanizing, leaving no surface with inferior paint protection. Supergalv coating offers a superior life expectancy. Lintels over 1500mm must be propped until masonry is fully loaded and cured. This product should be used in a cavity size of between 70mm-90mm.