I want to know where my buildings will be before I start glueing down roadbed and track, so I am going to make some mockups. I spent the morning making a mockup for Seattle Ligthing, the large warehouse on the west side of the layout. I made two mockups, because I wasn’t happy with the first one.
The first mockup had hardboard nailed to a pine strip to screw into the layout deck. I cut this too short and the hardboard was too flimsy.
The second mockup I cut from plywood and used a plywood screw strip. It is 4″ tall (3/4″ of that is below track level foundation). It’s 80″ long (about 9″ less than the prototype).