Mainframe is a trusted UK brand specialising in premium aluminium tubing systems and components for building strong, flexible garden and greenhouse structures. Known for its durability, precision, and ease of use, Mainframe provides everything gardeners need to create custom protective plant cages, pond covers, pet or chicken runs and framework solutions tailored to any outdoor space. With a focus on quality engineering and long-lasting performance, the brand’s range includes aluminium tubes, connectors, joints, and accessories, all designed to deliver strength and stability while remaining lightweight and corrosion-resistant. Whether you’re constructing fruit cages, netting frames, or bespoke garden projects, Mainframe offers reliable products that make DIY garden structures simple and secure.