Hey Darrell, sorry for the delayed response, got busy, My idea was to have a couple dead end sidings depending on the room I have, to layout a couple action accessories like log dump and milk can loader. I thought of a corner mountain tunnel on the upper left on the outer loop, maybe a slight grade to it to give some height to the layouts. the right side of the layout where you have multiple spurs is 32 " wide as is the table at the top is 32" also, however the left side along the window is only going to be 28" to stay away from the window shutters. Ive started building my table units before I have a plan, that seems to work better for me although backwards, I can definitely start with the two loops O72 and O 60 and go from there.