Old countertop as baseboard

[jcj380]

I had 18 inch wide foam on 15 inch wide hollow core doors with no visible flex. The foam was 1 inch thick. I didn't load the overhang with plaster scenery or anything like that though.

Probably best to experiment before risking good rolling stock or structures.

The only downside to a countertop that I can think of would be weight.