Home Despot doesn't have them.
No store does, generally.
JUST BUY ONE.
You *will* then be able to justifiably discard all your other ladders.
I'm not kidding.
Thanks for the advice!
I'd love to get rid of my old, rickety, wooden, "chick" ladder, but the kittens really like climbing on it. I may just set it up in their room for them to play on.