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

What Is the Difference Between Gatorboard and Foamboard Printing? - CR&A Custom, Inc.

Custom Foam Core Printing: High-Quality Signs and Displays

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

A method for mounting large prints on foam core

Gator Board Strong Foam Board

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

Tile Backer Board Breakdown which one is best for showers

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

PVC Sintra, Gator & Infinity Foam Board Printing

Foam Board vs Gatorboard vs Falconboard Signs

PREMIUM 10 PACK - This item comes with 10 pack foam boards, durable and Acid-Free. SIZE 11 x 14'' - 3/16 inch thick, black color, lightweight but

Mat Board Center, Acid Free Foam Boards 11 x 14 Inch, Black Foam Core, 10 Sheets