In the ideal basement, we have both the entire basement and no walls or barriers. On the other hand, few things make a layout as exciting as being able to run a train from one room to another. I have access to the whole basement for the layout, but I do have walls to deal with. This means that I had to plan for holes in the wall to move trains from one part of the basement to another. This also allows me to utilize a continuous running format for the railroad. Shown here are photos of the first three holes in the wall. Two more to go.