The waltons 4 x 6 lean to greenhouse is a remarkable garden building whose design offers practicality style and uniqueness its design allows you to construct it against the side of a wall which helping you maximise your garden space the greenhouses are built from ultra strong dry coated in powder aluminium frame which gives the buildings a striking finish and durable quality the 4mm thick polycarbonate glazing has twin walls that provide more insulation ideal for plants these greenho