2 1/2 in x 4 ft x 8 ft DuPont Styrofoam Brand Extruded Polystyrene Insulation at Cowtown Materials, Inc.
Styrofoam™ Brand SM Insulation
Dow Styrofoam SE Square Edge - Sterling Building Materials
Styrofoam™ Brand Roofmate™
Dow STYROFOAM Brand PERIMATE Insulation | Equipment Rental|Tool Rental|Rock Salt| Roll Off Dumpster Rental | Concrete Forms | Rochester NY | Ithaca NY | Dansville NY | Auburn| NY | The Duke Company
Dow R-5, 1-in x 4-ft x 8-ft SCOREBOARD Faced Polystyrene For Use In Garage Doors Board Insulation Sound Barrier at Lowes.com