06-20-2011, 02:46 PM
If you're trying to do this over existing foam tabletop, the Woodland Scenics risers are going to be the easiest option for you. An 8' 4" run will get you up to 4" with the 4% grade, and you can curve it any way you need to. What you won't get are easements into and out of the grade at the top and bottom.
You can try and cookie-cutter your foam and brace it from underneath with risers as others have suggested, but I suspect given your construction (as viewed from the picture) this is going to be a lot more work than just sucking it up, dropping the dough and gluing the WS risers down.
You can try and cookie-cutter your foam and brace it from underneath with risers as others have suggested, but I suspect given your construction (as viewed from the picture) this is going to be a lot more work than just sucking it up, dropping the dough and gluing the WS risers down.