The styrofoam in the previous picture is Woodland Scenic's foam risers. The blocks on the other side of the bridge are solid 6" X 12" X 48" foam blocks I purchased from a company that makes foam panels and the 6 X 6 X 12" blocks I bought from an art supply place. My track rises six inches where the bridge crosses. I found out the hard way that six inches isn't enough clearance for a Double Stack Train. Luckily I only bought one car. The Woodland Scenic is a combination of two inch and four inch riser sets. I put four of them side by side to get the desired width to fit the double track profile. After this photo was taken I covered the risers with one inch green foam cut to fit the curve. I covered everything with a product called Fibatape Super Crack Stop. Home Depot sells the stuff and it comes in a roll that is 36" wide X 50' It is the same type of material they make fiber drywall tape out of. I used it to give the plaster something to stick to. Once I covered all the flat surfaces with the mesh, I covered everything with a skim coat of Gypsolite. After it dried I painted the surface to seal it. I used it too fill in some voids between the foam boards and to add a little profile to the edges of the risers. On the other end of the layout I had the company do some custom taper cutting on three 24" X 48" blocks. One was taper cut along the long edge from 6" to 4", another from 4" to 2" and the last one from 2" to 0". In the back left corner I put the 6 to 4 block and ran it down to two 2" X 24" X 8' pink panels. The 4 X 2 went down to the end making a 90. This went to a 2" x 8' pink panel and the 2 to 0 was added to the end side of this panel.
