Gardman 4 Tier Extra Wide Grow Arc Reinforced Growhouse 08919 This tubular steel four tier growhouse with extra growing space has a reinforced cover and shelving included - 160cm high, 105cm wide, 45cm deep. FREE POSTAGE £39.99 Quantity: at £39.99 each Add To Basket Wider growhouse for extra growing space. Simple push-fit assembly: no tools required. A strong tubular steel frame with a reinforced polyethylene cover. 160cm High x 105cm Wide x 45cm Deep. Plants, pots and trays shown in the picture are not included - for illustration purposes only.