Here is an innovative solution for growing plants. The Grow Chamber provides over 18 sq ft of growing space. The integrated shelf system includes 4 tiers of wire shelves with 15ï¿½" headroom between shelves. If additional height is required, simply remove one shelf to double the headroom. The tubular steel frame has a baked-on epoxy finish and assembles easily without tools. Three removable covers are included with the Grow Chamber: a UV-resistant plastic cover with a double zipper front opening for easy access to your plants and a back vent for additional air flow; a 50% shade cover for summer growing to diffuse light and balance heat; and a flower forcing cover that omits light to force short day plants into bloom. Overall measurements: 63ï¿½" tall x 27ï¿½" wide x 19ï¿½" deep.