Again the layout is 120" x 28" being built in 2 sections.

I'm using 1/4" ply for the top, and since I don't own a lot of tools, I'm going with dimensional lumber for the structure... I chose 1x4 select pine, as it seemed to be fairly hard, and didn't seem to bow much if any on my last layout.

Pretty straight forward stuff, I used cabinet screws on the structure. I bought 2 2x4' 1/4 ply sheets into the necessary lengths and braced the middle with an additional 1x4 where they met together. The top is screwed to the frame using simple wood screws.

Also my order of kato trackwork is in (except for the super tight curves) which are the 183mm radii curves.

With the scraps from the ply I've cut them to the size of the tack bed and raised them from the base using a 3" long screw, and 3 nuts. Two nuts hold it up from the base, and the 3rd nut raises the bed off the top. I probably should have used, washers, but with the amount of supports they seem pretty solid. I imagine, the scenery and backboards will eventually strengthen this further.

This weekend I got the trackwork for one module raised up. The other half I will tackle next weekend.