【Prevent Heat Loss & Lower Energy Bills】Our 300mm loft stilts legs safely elevate your loft boards without crushing loft insulation, keeping your home warmer and reducing heating costs. 【Ultra-Strong Hybrid Material】Engineered with 70% PP + 30% fiberglass blend, our loft stilts legs resisting warping and supporting up to 350kg without bending. 【Secure Joist Attachment System】Each loft stilts legs locks firmly to every joist, creating rock-solid support for your loft boards that lasts for years. 【Prevents Damp】By properly elevating loft boards above insulation, our spacers promote vital airflow, removes the risk of dampness building up. 【Engineered for Maximum Support】Featuring a 76mm x 76mm top plate (wider than most loft stilts) and reinforced 38mm x 76mm base, our design distributes weight evenly to prevent sagging loft boards. 【Professional Choice】Trusted by 10,000+ UK builders and DIYers, these loft stilts legs meet strict building standards, offering superior performance to flimsy imitation loft stilts. Designed in the UK, Manufacturer: Loft-Trac