>Can anyone comment on various methods of attaching benchwork to a cinder
I work in construction, and a method we use regularly isapply a liberal layer
of PL200 or Liquid Nails (PL is preferred; it seems to hold better) to the back
of a 2x4. Place it into position, and then hammerdrill a 1/4" hole through the
2x4 into the cinder block. Next, insert 2 or 3 16-penny common spikes into
each hole, and pound them in. When the spikes go through the cinder block,
they spread out in the wall behind, sort of acting like a pop rivet.
My suggestion (and I have done this with several layouts) would be seal your
ba***t walls, and then to build an L-girder using a 2x4 for the web, and a
1x3 or 1x4 for the flange. Install this around the perimeter of your ba***t
wherever the railroad will be attached to the walls. If you need longer runs,
you can stagger your webs and flanges to make incredibly long L-girders. You
can then add a second L-girder standing out from the wall by a foot or two,
parallel to the wall as needed, supported by its own legs every 4-6 feet.
> I am now wondering whether foam is the way to go.
I have used foam on modules, and helped a friend build a layout out of foam.
My experience with it is that it is LOUD, no matter what you put on top of it.
I very much prefer a wood structure for my roadbed and supports, and if you
prefer, you can use the foam for scenery forms, especially near the front of
the railroad, as it offers some "give" while still supporting the scenery.
Foam is also relatively expensive compared to wood (especially since you
already have the wood), and you will create a lot more s***than you realize.