Amazon.com : Foam Core Backing Board 3/16" White 24x36-5 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects : Office Products
Foam Core Backing Board 3/8" White 24x36- 25 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
24 x 32 Prints on 3/16 Foam Core
Foam Core Backing Board 3/16" White 24x36- 10 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School, Office and Art Projects - Walmart.com
8 Pack Corrugated Plastic Yard Signs 24x36 for Outdoor, Open House, Birthday, Lawn, Foam Poster Board with 4mm Blank Surface (Blue) | Michaels
Amazon.com : Union Strong Foam Board 24X36 3/16" 10-Pack : Matte Finish High-Density Professional Use, Suitable for Presentations, Signboards, Arts and Crafts, Framing, Display (White, 24 x 36 x 3/16") : Office Products