Woodland Scenics ST1422 Foam Sheet .25" thick 4 sheets pkg

4 sheets/pkg - measures 1/4" d x 12" w x 24" l (6.35 mm x 30.4 cm x 60.9 cm) What is the best way to make a tunnel? Tunnels can be made in a variety of ways. Ready Landforms are an easy way to add a tunnel. They are preformed, landscaped and ready to place on a layout. Available in HO and N scales and straight or curved designs. Self-supporting Shaper Sheet is another easy way to add a tunnel. Form into tunnel shape and arrange over track. Cover in Shaper Sheet Plaster and add landscape materials. For added realism, paint underside of Shaper Sheet to resemble blasted rock. Use 1/4" Foam Sheets or 1/4" Modeling Sheets to make tunnel walls and roof. Use No-News Paper or newspaper to add paper wads around the tunnel foundation to model terrain, and add a double layer of Plaster Cloth to form a hard shell. Use the Tunnel Liner Form to mold tunnel sections from Lightweight Hydrocal, Shaper Sheet Plaster or Super Strength Plaster. Connect sections together with Plaster Cloth to form desired length of tunnel. Can your Foam Sheets be carved? Yes, they can be carved with a Hot Wire Foam Cutter, Foam Knife or other hobby knife. Why is SubTerrain foam made with expanded foam? We wanted a foam product that was lightweight and easy to use. You can cut SubTerrain quickly and neatly, it will not crumble or fall apart, and working with SubTerrain high-density foam rquires no previous modeling experience. When cut with a Hot Wire Foam Cutter, it does not emit toxic fumes. Is it true that SubTerrain foam products will not crumble or fall apart? Yes. SubTerrain foam products are made from unique, high-density foam and will not crumble or fall apart. I am using your 1/4 inch Styrofoam boards to create a wall where my N gauge train travels to a different level. I have tried using Foam Nails to hold the board in place, but as I start to round the board to follow the opening the pins pop out. You will have an easier time if you curl the the Foam Sheet before trying to install it. You can do this by gently flexing the Foam Sheet back and forth or flattening it slightly with a rolling pin. This will allow the Foam Sheet to flex more easily. We also have 1/4" Modeling Sheets. These sheets are very flexible and bend easily along a curve. Insert the Foam Nails at a slight angle through the Foam Sheet and into the plywood What are your foam sheets made of? Our Foam Sheets are expanded polystyrene. Our Modeling Sheets are extruded polystyrene.