Top Paw™ Extra Tall Pet Gate with Small Pet Door - Tension Mounted Gates - Gates - PetSmart
I was super lucky and found one of these at our local Goodwill for $4.75 (best find EVER!). I screwed it into the wall because I have an SA dog. It lasted OK for a few months until he figured out how to chew the plastic latch on top. It's still fine, I just use a chain to keep it closed now. I highly recommend it. Very sturdy product and easy to open and close. I chained the little cat door shut since my cat can fit through the bars anyway, and I completely envisioned my SA dog getting his head caught while I was gone and ending up snapping his neck or something in a freakout.