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Guys, <br /> <br />My first layout was a tabletop using 3/4 inch plywood stiffened with 2x4 along the edges. Now I have finished the L-girder benchwork for a portion of my next layout. I can't locate my copy of Linn Wescott's book on constructing benchwork. I intend to build the subroadbed by laminating two thicknesses of plywood and use cork roadbed on top for the track (This is an HO scale layout in case that matters). What thickness of plywood should I use and is there a maximum spacing recommendation for the risers that support the subroadbed? I also intend to build the roadbed three inches wide for single track portions and five inches wide for double track portions. Does anyone think this would be a mistake? Thanks in advance for your assistence. - Ed
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