This big boy is not quite light on his feet and has a tendency to run into a few things.   He has been here for 4 weeks and seems to be settled and sleeps a lot. 
When my wife and I are cooking in the kitchen, Trenton hangs out in the crate.  Trenton will probably need the XL crate. 
I can only think of one thing that Trenton does that might be hard because of his size.  He melts or cowers when he thinks he is trouble.  That is a a lot of dead weight if you need to move him.  He usually is not in trouble.  He is sweet dog that wants to please you.