Starting my layout is a big step for me, years of having nothing but a work bench to play on I'm finally building it. Reusing lumber from old layouts I started in the middle, the peninsula is what my aisle ways will be based off of this. I need my radius on the peninsula and need to deal with the post in the way. 1x4 for the peninsula and 1x3 around the walls, mostly for cost reason, and I see no reason to overbuild. The room is 10'6" wide and 24" deep. It'll be a prototypical freelance based on the St. Johnsbury Vermont area, which will include the CP, MEC, B&M and my own short line. I have still many decisions yo make, but it's a start!