I’ve wasted nearly a month deliberating roadbed. I thought Lowe’s was going to get me some 1/2″ blue foam, but the order fell through (You just can’t get the stuff in the Puget Sound area without ordering a lot of it). I searched for alternates: cork underlayment (Pricey and not easy to get), Rubber underlayment (Pricey and not easy to get), craft foam sheets (not consistent in quality), MDF (Heavy and requires saw to cut).
I like the look of Homabed from California Roadbed. It’s pricey, but it looks great. I’ve never acutally handled homsote, so I hope I like it. I chose the HO main line 45 degree roadbed. It is .240″ thick and beveled at 45 degrees.
The FAQ says it takes 2-3 weeks to mill the order and 1-2 weeks to deliver. I hope my order makes it here as quickly as possible. It’s a pretty simple order, maybe they already have it in stock.
When I get my roadbed. It’ll be stacked 1/2″ to 3/4″ high. This height will give me room for foundations and drainage, the rest of the areas will be filled with something cheaper that Homabed, perhaps sheet homasote of 1/2″ Sound Board and True Scene Scenic Fiber.