Freestanding Greenhouses | Detached Greenhouse
Quonset
Based on arched roof. The arched roof allows stresses on the structure to be efficiently transferred down to the ground. Quonset greenhouses may come in two basic designs. In the first, the arch extends to the ground with no sidewalls. In the second, the arch essentially forms the roof and gable sections of the greenhouse and is set on straight vertical walls.
Quonset greenhouses are cheap and easy to build. The can be covered with either polyethylene film, fiberglass reinforced plastic or polycarbonate