What are the options if I want to buy cork roadbed in HO scale?
Midwest is the most commonly carried. But there are several options available. Life-Like’s Cork Roadbed is a little wide for HO in my opinion. But works Well. Model Power’s cork has to be cut in half down the center or you will rip it to shreds because the “scribe” normally isn’t deep eneugh ti just gently tear it with finger pressure.
I am not sure on the brand but Train World sells cases of 25 lengths of cork road bed for a decent price.
James
Some modelers also use, under HO track, unsplit cork roadbed sold for use with N gauge track. This provides sound reduction while simulating the lower ballast profile of a short line, industry spur, or other lesser-used track. Regular HO cork has a high ballast profile typical of Class 1 main lines, but not often found on short lines or lesser-used tracks.
Here in the U.S. you can buy cork in large rolls used for flooring under-laminate. With as much as your going to need, that might be the economical way to go.