I've found myself needing to build a module for an upcoming GATS show and NMRA Convention so I thought I'd post my progress for you. Building this required the dismantling of my former layout but only in part. Since my original layout is a simple switching plan, I've simply reconfigured the original tabletop to bring my track into the NMRA standards. Because it is being built to be toted, I used the finest, clean grade A pine I could find, knot-free and straight as an arrow. This is not the most economical way to go but it is the first rule in derailment free operation, that is, start with a firm foundation. Materials for this were; 2 1x6x8 cut to 6' long, 1 1x6x6 cut to two lengths 28 1/2" long, 2 1x4x6 cut into four pieces 28 1/2" long, and a piece of 2'x4'x1/2" furniture grade birch plywood, ripped to 1/2"x6" strips 28 1/2" long and, assorted nuts, bolts and screws.