Mine is 45 inches high with 3 shelves and i have the floor space also. Im tall so i wanted something that would be easier on the back, i used 2x4,s and 1/2 inch boards and not really much else. Its bolted to the wall and is sturdy, only took me like 2 hours to put together and im no carpenter by any means. If i get a chance i will take a few photos and post. Wanna kill these ads? We can help!