Does anyone know if these products are good? If I used regular wood (non-pressure treated) for outside use, do you think this product would work well? I'm considering using it for my cat enclosure. Since the weather was so bad here last weekend, I haven't picked up the wood yet. If I were to use untreated wood with this product, which type of wood would work best for my project? (pine, oak, etc.) I really don't know one from the other. Thanks!