Every Gardeners Dream Sunshine GardenHouse is charming, easy to build and affordable. Made in the USA, our greenhouse kits are built strong, made with natural redwood frames and virtually unbreakable twin-wall polycarbonate. Ideal for extending the season, over wintering plants, seed starting or gardening when the weather is foul. Manufactured for over 20 years. Wind tested to 85 MPH Sunshine GardenHouse is strong. The easiest to assemble greenhouse kit. Not only clear written instructions but a video showing how to assemble. Included in the kit are automatic vent openers and a base made from recycled plastic. Mt. Hood models are six ft. wide with plenty of headroom at 8 ft. 4 in. tall at the peak. Narrow enough to fit a small space, each kit is made with a clear natural redwood frame, twin wall polycarbonate glazing, Dutch doors and a base made with recycled plastic. If you are not sure of which size to purchase, remember we offer a four foot extension kit. With our pre-assembled panels, can easily assemble your GardenHouse in as few as 4 hours. We include easy to follow printed instructions and a video showing how to assemble.