We look at the stairs differently. They vary GREATLY at the bottom and can get quite complicated. Here is a collection of pictures where The Stair Barrier BB (banister to banister) is designed to specifically keep children and pets off the stairs. In February we will also be launching The Stair Barrier BW (banister to wall) for those with a banister on one side and a wall on the other. Show us your hard-to-gate stairs even if they are not banister to banister.