I would crate em' instead and a bunch of chew toys. I had a Samoyed years ago who we gave the run of the house while we were gone. We began crating her again after she sat on our stairs and ate an area of the wall
Dogs just get bored when we're away. Be proactive about giving him something to do in a controlled area with nothing you want damaged in it
They need their mouth - don't muzzle em.