3 8 Foam Core Board, I would think Gator Board which is much harder and stronger would be a better choice.

Foamboard vs Gatorboard

PREMIUM 12 PACK - 12 foam core boards in each package. Packed in PROTECTIVE PACKAGING - no damaged edges or corners. SIZE 30 x 20 - 3/16 (5mm) inch

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

Select from the product options below. Choose or edit your design in the design tool, upload your own art or make a custom request!,

Gatorboard

PVC Vs Gator Board Vs Foam Board: Which Is The Best Logo For You

20PCS FOAM CORE BOARD: White foam board is made with polystyrene extruded foam laminated between two sheets of paper to form a lightweight but strong

20 Pack White Foam Board 12 x 16.5, 3/16 Thickness Foam Core Baking Board for Projects, A3 Polystyrene Mat Board Poster Foam Board Sheets for Art

Foam Core Signs, Foam Board Printing, Los Angeles, US-wide

foamcore, bead board foam board, All White Gatorboard 4' x 8' x 3/16 Gator

How To Hang Mounted Photos

☑️ 𝐏𝐑𝐄𝐌𝐈𝐔𝐌 𝟏𝟓 𝐏𝐀𝐂𝐊: This foam board comes in a comprehensive 15-pack, each sheet crafted from high-quality polystyrene foam that boasts both

Excelsis Design 15 Pack Foam Board 20x30 Inches | White Foam Board 3/16 Inch Thick White Core Mat | Backing Board for Presentations, Signboards, Arts

MIVIDE 20 Pack 11x14 inch Black Foam Boards, Foam Core Backing Boards 3/16 inch Thick Double