There are six Sheets in this package. These Sheets are great for railyards or sidings. The Sheets are 3mm x 3 1/4" x 24". Track-Bed requires no pre-soaking like cork does: it remains flexible and won’t dry out or become brittle! It aligns well with cork or Homasote applications. Install Track-Bed with Foam Tack Glue (ST1444). Pin in place with Foam Nails (ST1432).