When I built my HO track I knew that there would little room for scenery, so I went for more of a commercial track look and I planned on just painting the top of the table green. The table top is 3/4 inch thick plywood, it looked terrible painted green, so I bought some green foam backed carpet runner. The runner came in 2' by 8' rolls, the pile is a bit heavier than typical outdoor carpet. Hardware and home improvement stores have similar carpet in big rolls, so you can buy any length that you need. As it turned out when I put two rolls side by side the carpet was too big, so I just tacked the extra material to the walls that go around the table. The foam backing does a good job of dampening noise and the carpet on the walls prevents damage to the cars.
