@Mike CT posted:A lot of different grades/products available. One side finished would work well for a train table. With a 16" on Center support system, 1/2", or what ever, is the closest equivalent would work. Assume your layout requires (3) 4'X8' sheets. $200+. Framing material/lumber ?? $300. Have fun.
A lot of it also depends what will be on the table. 16" centers with half inch plywood is the standard for floor sub flooring. Unless someone is planning to stand on the layout a lot, or have incredibly heavy things on it, in that case you could prob use 24" centers and not have issues with sagging for example (if your layout has huge mountains with a lot of hydrocal, then maybe, but for most scenery and trackwork the load just isn't that large.
