The 6 x 6 extra tall polycarbonate greenhouse is a brilliantly designed garden building reinforced by sturdy aluminium frame which is powder coated in evergreen colour for extra solidity and robustness the doors and glazing is also supported by the aluminium frame to keep the greenhouses structure strong and stable you will get more room because of the sliding door which helps in maximising the area we have used polycarbonate for the construction of the extra tall greenhouses because it is