Tend to your favorite species in this nurturing greenhouse, The unique dome design combined with high-quality building materials and engineering mean this robustly built greenhouse is well-insulated to nurse your plants through frigid winters, Two hanging shelves offer room for your tools, while open space under the bottom shelf provides an area for storing your wheelbarrow, ladder or long tools, Heavy-duty aluminum frame and stainless steel hardware for durability, 8mm and 10mm twin-wall UV-coated polycarbonate glazing blocks harmful UV rays to keep your plants safe, Anodized aluminum profiles allow for long-term use, Polycarbonate-glazed panels nested in aluminum channels and sealed with thick rubber seals ensure effective insulation, 4 roof windows with automatic opener, 1 oversize back wall window and 1 large Dutch-style barn door provide proper ventilation, 1-piece components, including a full-length roof beam, lateral and base profiles, deliver dependable stability, Curved roof deflects heavy winds, prevents heavy snow buildup and stays tough under hail, Assembles in 8 10 hours with a Philips screwdriver, 10mm wrench, adjustable wrench, rubber mallet, cordless drill, 6" A-frame step ladder and 8" A-frame step ladder (not included), Dimensions: 17"2""l x 9"8""w x 7"6""h (greenhouse from center); 40""w x 24""h (each window); 30""w x 49""h (oversize back wall window); 30""w x 79""h (door), this item comes with Base SKU: EXTR122