The Magnum greenhouses are the top of the range Hall’s greenhouses, designed for the use of the enthusiastic gardener and incorporating many outstanding features. All Magnum greenhouses feature double sliding doors to give easy access for wheelbarrows and are especially suitable for the disabled gardener as the doors provide a 4′ opening. In addition, the Magnum has an extra ridge height of 8′ providing plenty of headroom and space for tall plants. Greenhouse comes complete with 4 automatic vent openers. The Magnum 148’s dimensions are L14 ‘7″ X W8′ 5″ X Ridge Height: 8′ 0″Eaves Height: 4’ 6″ (heights do not include base).