After much thought, the decision is made. This O-scale adventure would start out small: a 5X10 layout. And it needs to be easily dismantled and moved. Blue foam is now popular in HO and N, but could it work in O? I came up with a design for two 5X5' lightweight 1X3" wood frames topped with 3/16" underlayment and 2" blue foam.
I built 4 "H"-shaped 1X3" legs and diagonal braces, bolted the 2 sections together, glued on the blue foam with latex caulk and the table was done.
