We have a 50' opening on our deck so most standard gates wouldn't work. This one fit the space perfectly. Also, it's wedged between the side of the house (with vinyl siding) and the aluminum post of the deck railing so we didn't want to have to drill any holes so we really like the fact that it's a pressure mount. We have it between the deck and a landing where there is one step down. I wouldn't use it at the top of a staircase (as it tells you not to in the description) because you can never fully trust a pressure mounted gate, but it works great for where we've got it. Also, the gate opening is really easy to open and close to let the dog in and out.