Here is a little before and after. No one will be falling off the side of the stairs now! Yay!
Good news? I can also now use this as a shelf since the cat will not be sliding through and knocking everything off. For non-breakables, at least, as she might seek revenge by poking things off between a slat. She has been taking this all rather well by spending more time getting onto the kitchen counters and the dining room table. Yes, I deserve that response, I suppose.
Giving the stink eye from under the Christmas tree