Sunshine GardenStarter Kit

This cold frame is made of redwood framing and double wall polycarbonate panels. The front and back panels are insulated white plastic. The components are of high quality and the kit goes together easily. One change from the included directions I would recommend is to slide the clear panels into the framing slots before attaching the framing panels together. In my kit, the slots were not completely aligned after the framing was screwed together and I couldn't insert the panels without damaging them so I disassembled the frame, inserted the panels and then screwed the frame together - this worked fine. I've only had the cold frame outside for 2 months so I can't speak to how well it will hold up in inclement weather. Based on the high quality of materials, I would guess 5 years at least. This is a good quality product at a reasonable price and I would recommend it.