It'll look like crap, but to keep your dogs from chewing on your deck, you could staple chicken wire to it--provided they don't take a liking to the chicken wire. We use it around the base of the fence to keep our dogs from excavating out the mole tunnels that run under the fence and also have used it on the landscaping ties to deter them from chewing. They don't seem to have a taste for chicken wire, so we've had good luck with the technique. Worth a try, anyway...chicken wire is pretty cheap...