In short order, we've taken 9 pieces of wood from this:
And now to this!!
I usually build modules in pairs as I can connect them together for transportation as a "boxed set" simply by bolting them together with a piece of plywood at each end. We've installed T-nuts explicitly for this purpose. The track and scenery on each module faces inwards so that it is protected from destruction when transporting the modules. Here's what the two module frames look like when they're bolted together.
Next we'll show you how we make those plywood "carry plates".