This robust floor foundation kit is a simple hot dipped galvanised steel frame that sits within the building. Providing a support grid to add a layer of timber or solid board flooring of your choice. This raised floor is ideal, adding protection against direct ground contact to anything you wish to store. Designed specifically for all Rowlinon 4 x 3 Airevale apex plastic sheds.. Manufactured from hot dipped galvanised steel. Robust 0.45mm thick steel. Secures in place to shed base frame. Easy assembly. Floor boarding not included. For use with Rowlinson Airevale 4 x 3 Plastic Shed. Assembled Dimensions: Height: 20mm Width: 1170mm Depth: 330mm