Our entry hallway is a small area.  I only had 36" wall space between the door frame and our closet door frame.  My husband said it was like surgical work putting it up, but it's exactly what I had wanted.  Due to this shelf needing to be anchored in a stud and the location I wanted o hang this did not have two, my husband had to buy some additional hardware to make sure this would stay up safely.  Since then, it's worked out well.  I would buy this again and recommend it to others.