PVC Foam Board - White - 3/4 inch thick - various sizes – Falken Design
Amazon.com : Colarr 10 Pcs Exact Thick Foam Board 20 x 30 x 3/4 Double Sided White Poster Board Foam Core Board for Mounting Signboard Crafts Framing Modelling Art Display Presentation School Projects : Office Products
Owens Corning R-3, 0.5-in x 4-ft x 8-ft FOAMULAR NGX Sheathing Unfaced Polystyrene Board Insulation in the Board Insulation department at Lowes.com
Amazon.com : Foam Board 24 x 36 x 3/16" (5mm) - 12 Pack - White Poster Board, Acid Free, Double Sided, Rigid, Sign Board Foamboard for Mounting, Crafts, Paintings Prints, Art, Display,
Amazon.com : Foam Board 20 x 30 x 3/16" (5mm) - 12 Pack - White Poster Board, Acid Free, Double Sided, Rigid, Sign Board Foamboard for Mounting, Crafts, Paintings Prints, Art, Display,
Foam Core Backing Board 3/8" White 18x24- 25 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
BAZIC White Foam Board 20" X 30", Colored Foam Boards 3/16 Inch Thickness, 50-Pack - Walmart.com
24x36 White Foamboard 3/16" Thick - Sam Flax Atlanta
Amazon.com : 20Pcs White Foam Board 14 x 11 inch White Poster Board 3/16" Thick Foam Core Board White Foam Backing Boards for Crafts Poster Making Art Presentations : Office Products
Amazon.com : Office Depot Foam Boards, 20in. x 30in., White, Pack of 3, 26811 : Office Products
RMAX Pro Select R-Matte Plus-3, 1 in. x 48 in. x 8 ft. R-6.0 ISO Rigid Foam Board Insulation 637900 - The Home Depot
RMAX Pro Select R-Matte Plus-3, 1 in. x 48 in. x 8 ft. R-6.0 ISO Rigid Foam Board Insulation 637900 - The Home Depot
Amazon.com : 30 Pack White Foam Core Board 20 x 30 Inch Foam Core Backing Board Sheet 3/16 Inch Thickness Polystyrene Poster Board for Presentations, Signboards, Arts and Crafts, Framing, Display, Projects : Office Products
RMAX Pro Select R-Matte Plus-3, 1 in. x 48 in. x 8 ft. R-6.0 ISO Rigid Foam Board Insulation 637900 - The Home Depot