<human>: First post on /r/dogs. My wife and I just got our first dog together and fell in love with her immediately.  We're working to train her for various situations, and one thing that I'd like to work on is what she does when she's in the crate.

She hasn't gotten to the stage yet where she can accept when we leave for work and crate her.  She starts braking of course, but she's also scratching the floor outside the crate's door.  We put a towel under it so as to not damage the floor or carpet that the crate would be on.  She has since learned to scratch the towel to the point where it gets folded into her crate and there are towel threads here and there.

Can you guys think of anything that I could put under her crate instead?  Something that won't get shredded like a towel would.  Obviously I could just put a sheet of metal or some plyboard under it, but I'd prefer something quieter if possible since she sometimes does this at night, too.  Any thoughts?

Can you give me a shortened version of the text?
<bot>: Dog scratches floor outside of crate when inside; looking for something quiet that won't make a mess to put under it to protect the floor