Catnic CN71A Steel Box Lintel For External Solid Walls
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The Catnic CN71A box lintel is used in external solid walls of 2 skins of bricks and blocks. The steel lintel is galvanised and powder coated, the duplex corrosion protection system ensures optimum durability and longevity. It has a integral plaster key with staggered slots to improve it's effency and prevent heat loss.
The box profile saves on brickwork and insulation, resists twisting during construction and is designed to carry a full load of wet masonry as soon as it is installed.