The shelf is about if i had to guess 2 maybe 2 and a half feet from the ceiling if needed i know i could go lower if i had to i have the perfect stand to its like a movable book shelf each shelf is removable each section is a foot tall its about 8 shelfs so i could potentially grow a 8 foot plant think about the yeild on that one. But if im gonna get that serious im gonna put some time and money into the room before i even think about doing something that big