LLB U-Type Fence Post Support Brackets – 4x4in Galvanised Steel

These galvanised steel post support brackets are designed to anchor timber posts securely into concrete, making them a solid choice for pergolas, fence panels, garden structures, and raised decking frames. Made from 4mm thick alloy steel and finished with a galvanised coating, they're built to resist rust and stand up to the kind of wet British weather that quickly takes its toll on cheaper fixings. The U-shaped channel holds a 100mm x 100mm post snugly in place, keeping it stable at ground level while protecting the timber from direct contact with concrete.

Each bracket comes with ten pre-drilled 11mm holes, giving you plenty of options for bolting or screwing through into your post from multiple angles. The 60mm depth of the channel provides a firm grip without the need for specialist tools, and the maximum allowable above-surface height of 50mm means you can set these neatly into a concrete pour and end up with a clean, professional finish. They suit anyone tackling a DIY pergola build, replacing old fence posts, or putting up a garden structure where a solid, long-lasting base really matters.

The silver galvanised finish holds up well outdoors without looking industrial or out of place, which is a small but welcome detail when the brackets are visible at the base of a feature like a pergola or garden gate post. If you're working with standard 4x4 inch timber, these are a practical, no-fuss solution that saves you from having to sink posts directly into the ground and deal with rot further down the line.