Amazon.com: 1 Inch Thick Foam Board Sheets - 6 Pack 17x11 Inch Polystyrene Rectangles for DIY Crafts, Insulation, Sculptures, Models (White) : Arts, Crafts & Sewing
R-Tech 1 in. x 48 in. x 8 ft. R-3.85 Insulating Sheathing 320821 - The Home Depot
Pink Foam Insulation Board 1 Thick Foamular Boards for Craft or Home Improvements Projects - Etsy
Owens Corning FOAMULAR 1/4 in. x 4 ft. x 50 ft. R-1 Fanfold Rigid Foam Board Insulation Sheathing 21UM - The Home Depot
Owens Corning Foamular 150 Rigid Foam Insulation, 1" T x 48" W x 8' L, R-5 Insulation Value, Scored with a Square Edge - 7791048 | Kuhlman Direct Online Store
RMAX 4x8 4 x 8-Foot X 1/2-Inch Foam Insulation Board at Sutherlands
Board Insulation at Lowes.com
FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Scored Squared Edge
Rigid Foam Insulation for Existing Exterior Walls | Building America Solution Center