Polycarbonate greenhouses compared
Polycarbonate panels are light, they don't shatter and they hold heat better than single glazing. That makes them the safe pick for gardens with children, pets or footballs. Panel thickness matters most: 4 mm is fine for summer crops and seedlings, 6 mm and up keeps the frost off in spring and autumn.
Palram's top model with auto vents and 10mm panels
Clear sides for light, twin-wall roof for warmth
Twin-wall all round for the warmest budget Palram 6x8
A long clear greenhouse for a summer of tomatoes
Clear single-wall panels in a small footprint
A square 8x8 with double doors
A compact twin-wall greenhouse for small gardens
An 8ft polycarbonate lean-to with gutter and base
Budget polycarbonate lean-to with a sliding door
The cheapest 6x8 polycarbonate greenhouse
A tall timber lean-to for a sunny wall