The Elite Titan 800 8x20 Greenhouse is the largest in the range. It combines unmatched strength with an expansive design, making it ideal for ambitious gardening projects. Core features include:. *Apex roof shape and maintenance-free design *Integral base and gutters *Double doors with low threshold access *Six large roof vents *One large louvre vent *24 cantilevers on every bar *10 year guarantee *Optional powder-coated finish available in a choice of colours