We have 2 each 10 month old male Brindle littermate Bullies. We are converting a 6 foot x 7 foot porch into their own room. We cannot decide on what typy of flooring to install. Any small size industrial mats previosly laid down have been systematically pulled up and torn to shreads by the beasts. We considered garage decking , but the plastic is too hard. Tile, wood and carpeting are out anf vinyl tiles too slippery. Something durable, cleanable and someone soft for traction is ideal. We also considered health club type matting. wall to wall. Does anyone have any recommendations? Any thoughts on heating and cooling? We live in the SF Bay Area so the temperature is somewhat temperate. And lastly, any recommendations on the perfect doggie door? Thanks for the advice in advance!