This easy to use greenhouse offers plenty of room and light (over 90% transmission) for your plants. The smart, efficient structure uses crystal-clear polycarbonate greenhouse panels. There is a split-style door that makes moving large objects in and out easy and a large adjustable vent window that facilitates air flow. Easy to assemble; low maintenance. Dimensions of 6' x 12': 148" L x 74 3/4" W x 82 1/4" H (at center). Ships 5-7 days