This half growhouse is perfect for patios or balconies, gravel or even standing on a patch of earth and can be moved around the garden. Strong aluminium frame is glazed with 3mm toughened safety glass (which also provides superior light transmission and heat retention!). It doesn't need to be attached to a wall and, freestanding, the glass back allows light to get to the plants at the rear ensuring better growth. Its sliding panels provide a little or a lot of ventilation, as required and, unlike some other models, there are no hinged doors to bang in the wind. Aluminium structure with 25 year framework guarantee. Available: 4' long or 6' long. 4' Long - It includes one wide and one narrow seed tray shelf, providing enough room overall for 16 seed trays (the shelves can be removed in summer if you require more space). Flat packed for easy home assembly. Length: 1.21m (4'); depth: 0.65m (2'2"); height: 0.82m (2'8"). 6' Long - It includes 2 wide and 2 narrow seed tray shelves. For strength and safety, this model is glazed in toughened safety glass. Shelves can be folded back or removed if not in use. Length: 1.83m (6'0"). Height: 0.82m (2'8). Depth: 0.65m (2'2").