I've started a coffee table layout that is about 5' X 3' in size. I started by puting 1 X 4 strips together for a sub frame with a sheet of plywood roadbed that is 1/2" thick. I want to know if it would be better to have 1"X2" strips for the sub frame because of the weight of the layout. I've thought about cutting the 1X4s in half to accomplish that, since the layout is almost ready to finish. I found that it is a little heavy and wanted to make a nice furniture frame so it can be put into my living room. What does any else think?