$52.99 Shop Owens Corning Extruded Polystyrene Foam Board Insulation (Common: 2-in x 4-ft x 8-ft 
Shop Dow Extruded Polystyrene Foam Board Insulation (Common: 1.5-in x 8-ft x 2-ft; Actual: 1.437 
Owens Corning 1-in x 4-ft x 8-ft Extruded Polystyrene Foam Board Insulation in the Foam Board 
