The Durawall UC100 Galvanised Steel H Post is the foundation on which your concrete sleeper retaining wall is built. Manufactured from Grade 300 galvanised steel and hot dipped to 600g/m² in accordance with Australian standards, these posts are engineered to handle the lateral load demands of concrete sleeper retaining walls in residential, commercial, and civil applications; delivering structural integrity and long-term performance you can rely on for decades. The UC100 H section profile accepts concrete sleepers on both sides, making it the standard choice for straight retaining wall runs. Each post is hot dipped galvanised for superior corrosion resistance, not just surface coated, so the protection goes all the way through and holds up in even the most demanding outdoor environments including coastal Queensland conditions. Available in a range of heights to suit walls from garden bed level right through to full boundary retaining applications. As a general rule, select a post length that is double the intended wall height; so for a 1m high wall, a minimum 2m post is required to achieve the correct embedment depth for structural performance. Built to the standard. Engineered to last. Key specifications: Specification Detail Brand Durawall Product UC100 Galvanised Steel H Post Section type H Section — UC100 Steel grade Grade 300 Galvanising Hot dipped — 600g/m² to Australian standard Weight 14.8kg per metre Compatible sleepers All Durawall concrete sleepers Post height selection guide: Intended wall height Minimum post length Up to 0.4m 0.8m post Up to 0.6m 1.2m post Up to 0.8m 1.6m post Up to 1.0m 2.0m post Up to 1.2m 2.4m post Up to 1.4m 2.8m post Up to 1.6m 3.2m post Up to 1.8m 3.6m post For walls over 1.6m in height, engineering advice is recommended. Contact Dog Gone Fencing for guidance. Suitable for: Straight run concrete sleeper retaining walls Residential, commercial, and civil retaining applications New retaining wall installations Retaining wall extensions and upgrades Complete your installation with Durawall Post Cap H Section, Geo Fabric, Ag Pipe, and Fence Brackets — see the full Durawall accessories range. Pairs with the full Durawall concrete sleeper range — see all Durawall products.