I have used the from pet stores as well. They also aided in house-breaking I never built furniture around it, but I didn't do woodworking then. Dogs like to have a cave-type place to curl up - especially when they are little. There were times when I couldn't find a dog during the day and that's where she was at. Now, because we were slack with our current boxers, the living room couch is their's. When we finish remodeling the living room and get new furniture we will have a battle.
Puppies will chew on EVERYTHING. Be sure they have plenty of items they are allowed to chew on (and please remember that a chew toy that looks like a shoe really looks like a shoe - so to them they are the same thing! :lol: )