The Layout V1 Details
is was a multiple deck, shelf style layout. Normally the deck is was less than 12" wide; it did bump out to 24" at the major yard, which is my version of Acca Yard. Like most modelers, I had to compromise in what would fit and what would work well when it comes to operations, so the classification tracks are single ended, rather than double like the prototype.
The track plans should be considered "baseline" type of documents, as the as-built railroad differs from the track plan in a couple of spots. Hopefully they give enough insight that the reader can understand the size and scope of the layout.
The benchwork was mostly built from 3/4" plywood; I ripped the sheets of it down to 3" wide strips that I then used to provide joists and other support framework, since this was cheaper (and certainly straighter) than dimension lumber. One thing I discovered is that the big box stores (Home Depot and Lowe's) sell 3/4" plywood that 1. isn't 3/4" and 2. Isn't consistent from 1/16 to 1/4 from a nominal 3/4" inch thick. Fun times occur when you try to match up your subroadbed and find issues like this.
I started benchwork with the lowest level staging yard, which is 33" or so from the floor at track level. I build the benchwork somewhat like modules or dominoes in 8 foot long sections. I made an attempt to make things somewhat modular to make it easier to remove when the time comes to sell this house. As time went along, I moved away from the truly modular style and just built things in place once I realized that trying to fit a shelf style layout into a different room than what it was built in was probably a fool's errand and that I should save the time spent in engineering modular solutions and use it elsewhere. The upper level reflects this change, as it is homasote on top of 3/4" plywood with offset joints. (Something else learned during construction.)
When I first started laying track, I used the Woodland Scenics roadbed product, Track-bed, instead of cork, thinking that cork was "old" technology. Turned out that cork is easier to deal with and, as a big bonus, holds spikes very well, making track changes or reuse very easy. The track-bed, does not hold spikes, meaning you have to glue track down. This means that a good portion of the mainline will end up in the dumpster when I move anyway, no matter how modular I made it.
Note: Almost all the track on the railroad south of Acca that was glued (which was 95% plus south of Acca, including the South staging yard) ended up in the trash. I figured that I put about 1 box (25 pieces) of C83 Atlas flex, plus 2 cases of C100, plus 19 turnouts, into the landfill, which means I've got to replace that for the next one, which means my train budget will take a multiple hundred dollar hit.