10-01-2009, 07:46 PM
There is probably no good reason to use 2x4 lumber anywhere on an ho scale layout. You can use 2x2 for legs and the rest of the bench work framing does not need to be bigger than 1x3 or 1x4. In fact a 1x3 or 1x4 perimeter frame with 1x2 cross members will give plenty of strength.