Old world techniques may be applied to modern materials. The benefit to utilizing high density foam board is that it is long-lasting, durable, and fairly disease and decay resistant. High density urethane foam is the modern replacement for wood.

In this case, it's all in the treatment... your sign will still look authentic, crafted, custom and unique. In fact, in most cases, you may not be able to tell wood from high density urethane. It can be handpainted, carved, sandblasted and goldleafed.