My office is 5 feet wide. There is no more than 3.5 feet from the edge of my desk to the wall. I have never successfully tipped my office chair over when I lean back in it because there just isn't room... or so I thought. Tonight while I was on the phone w/ Jen I was leaned back against the wall and suddenly one of the wheels rolled, my neck slide down the wall, and I was LMAO while lying on the floor.