3020 N Cork Sheets 3mm x 3 1/4" x 36" N Scale
Single Sheet 1/8 (3 mm) x 3-1/4 x 36. Midwest's "N" Scale Cork Roadbed resembles the ballast used on real railroads. It has a consistent thickness, is lightweight, cuts and shapes easily and offers excellent sound absorption. Cork roadbed sheets are perfect for sidings and yards.