Thank you for your interest in Dingewood products! If you cut the wood, the exposed edge will look like raw wood. So you would want to stain the edges with with Weatherwash stain - color: STORM. Feel free to email us if you need in detail directions: email@example.com
Yes, this can be used on a covered outdoor porch.
SK: Thank you for your inquiry with HomeDepot.com. The Dingewood 1 in. x 6 in. x 8 ft. Driftwood Gray Weathered Alder Tongue and Groove Panel is only sold in a 7 piece box. We hope this information is helpful, we appreciate your business.
It can, but you are going to have to make sure that you put a good clear sealer over it due to the high humidity. Treat it much like you would do with an outside deck.
Alder is a hardwood. So to use it outside you would need a really good weatherproofing sealer.
You can apply the wood over top of your existing paneling. It is very simple to install. Check out the Installation Guide, for step by step tutorial.