C.C.
I suggest a gate with swinging door. Check out what is available at onestepahead.com. I bought one of my gates there (it required being screwed to the wall), but the swinging gate function makes it so easy! They also make tension style with the swinging door, which is what we installed at the bottom of the stairs. But one word of caution -- put some padding between the wall and the tension mount. I've got some gouges in my wall because I didn't know any better!