D500 posted:If your layout requires that you walk around on it, you have the wrong design, room or scale. Really. Never mind the lumber. Even - or especially - with layouts, Less is often More.
Inconvenience is the enemy of enjoying a layout, and climbing around on the layout has to top the inconvenience list.
Better to go to HO or S is it helps you access everything.
The layout will have plenty of access area's. This will not be a giant table and I am leaving 2' around the back and sides. No way would I go to HO. I have wanted a large layout since I was a kid. Now I have a 1200 SQ' building just for trains.