I couldn't figure out a specific forum to put this in so this is as close I can get. I've seen pine shavings recommended on this site. Would other kinds of shavings really be a problem? We already buy shavings for our horses and I'd really rather not have to buy a separate kind of shavings just for the chickens. The stuff we use for our horses is more akin to sawdust though so I don't know if that would be a problem.