SCHNUCKS, I used 2x2s for the legs and 1x4s for the frame work. I bolted the legs to the frame work with 3/8 hex head bolts. I used 1/2" plywood (the cheapest I could find) screwed to the top of frame work and 1/2" homasote on top of the plywood. I did NOT use any braceing (legs to frame work). I built either 4' x 8' or 2' x 8' sections or specialized sections when odd size was needed. Sections were bolted together with 2 3/8 hex head bolts. Once all the sections are joined together the whole layout is pretty sturdy. I have been on top for track work and have had NO movement of the platform. Remember, you are only building a model RR layout not a house. Some people like to kill it. LOL Not that there is anything wrong with that. Each to his own. Good luck and have fun. Oh, one more thing, when building the frame work, I spaced my 1x4s on 16" centers.
Rick
