These 4'x8' cold frames are perfect for starting seedlings when temperatures are still cool. Prop them open on sunny days and close them up snug for cold nights. We used these in the early years of starting our farm for starting seedlings for plant sales.
Sturdy wood construction, with a clear corrugated plastic top to let the light in. Will need a good hosing down but they're in great condition.
You'll need a trailer or 4x8 pick up bed to pick these up.