I have purchase 3 of these over 2 years. One I used 3 peices on wide opening (attached w eyehook and velcro strap to wall and stair rail). Second (with spare peices from firts) in garage across steps to wall so if dogs get to garage they cant get to street. Purchased last one for wide opening at bottom of steps. Great to make different shapes and angles. Only warning is that they needed to be used on flatlevel surface so not easily used outside. I put felt pads on bttom so can slide move easily to clean around.