Researching starting a new layout

[scootbird]

Has anyone here worked with 1/4" ply with 2" foam as a layout base?

I am eager to start laying down some track and need to know if I am on the right (excuse me ) track?\

Mike

[tom mann]

Is the 1/4 ply on a framework?  If not, I would worry that it would warp and separate from the styrofoam.  I would build a lightweight framework of 1x2s to support the styrofoam instead.

[rswinnerton]

scoot,
I've used it in the past and have had no problem. I use 1x4s as a frame, and then put the 1/4" over that, then the foam over that. I find that keeping the 1/4" plywood gives you an easy place to mount Tortoise switch machines and wire eyelets.
RS

[scootbird]

Thanks for hints - I forgot to say that I intended to build a 1" X framework and mount the 1/2" ply to that covering it with 2" foam.  Curious as to what the sound "quality" would be as well.  My intention is to make the layout as light as is possible in case I need to move things around.

Mike

[wm3798]

I'm using a sandwich of 1/4" luaun ply and 3/4" foam for part of my right of way.  It's all braced.  I'm using the thin profile to get clearance for my subterranean staging yard.

Lee

[chuck geiger]

I am using 1x8 foot pine shelf boards with 1 1/2" foam supported with shelf brackets around the room for my new layout. Last layout was even less thick, 1/8" masonite screwed to 1x2's to support 2" foam.