Now that is what I am talking about!
The walls are 2×4’s on 16″ center. Roof trusses are 2×16 on 24″ center. In the area next to the door I am also building a built-in rifle safe. There will be a Murphy style queen bed on one wall. It will have a built-in desk counter top. This is where I will put my Ham radios. The desk-top will be mounted so it will swing out of the way when you pull the queen bed down from the wall.
I am looking at having a couple pieces of furniture around the insides that will hold shotguns and handguns. The long guns like Mosin’s will go into the built-in wall safes.