all of my doors are either pop doors or open out. But on boring wet days (for chickens) they usually throw shavings all inside the nest boxes making me work for the eggs.Speaking of deep litter today my flock was inside going through the DL passing the time since the weather was so rough, when I went out to lock them up I couldn't get the door open all the way they had so much Dl up against it. I only pushed it open just enough to count heads and make sure everyone was in. When we built the coop my dh put the door so it opened in, doesn't work so good when you have about 10-12" of DL in there. Everyone keep warm.