Perfect as a direct, drop-in replacement for traditional 8-inch/200mm solid timber joists, this low-profile depth of Posi-Joist allows you to upgrade to an open-web design without altering your building’s floor-to-ceiling heights. Despite its compact depth, it features a clear 108mm internal clearance zone that allows 100mm pipes, services, and cabling to pass through. Custom-manufactured in our UK factory using specialist MiTek design software, these lightweight joists offer exceptional strength, easy manual handling and full compliance with UK Building Regulations for clear spans up to 5300mm.