I use the 36" crate for my 1 yr old 9 lb Pekitese. She has to stay in it all day while I am at work so it is also her play area (that is why I purchased a larger one). Throw a couple small blankets and toys in there and she is happy. Super easy to assemble and to fold up for traveling. Tray is durable and cleans up nicely. Be sure to flip up/secure the latch under the door to keep the tray from sliding out! I missed that step in the assembling instructions and it caused a few accidents. Crate stays in place on the carpet. No problems with chewing or bending of metal, probably because she is so small. I was looking at the Top Paw Dbl Door crate and I almost bought it until I saw this one for forty bucks cheaper. The only difference between the two was the extra door. Also, with the Top Paw they had to bend the frame to get it in their small packaging box so you have to bed it back when you put it together. I believe this will be the one and only crate I will ever need to have for my dog!