20x24 Backing Board

Backing Board is used for backing matted prints, photos, pictures or other artworks that need some additional support.  Thickness: 4-ply Made with chipboard in the middle  Both sides are White.

20x24 Distressed/Aged Complete Wood Picture Frame with UV Acrylic, Foam Board Backing, & Hardware - Blue

THIS IS FOR ONE SINGLE MAT WITH an Acid Free Backing Board and Self-Seal Crystal Clear Bag, Featuring a picture opening for a 16x20 inch photo, and a

16x20 Mat for 20x24 Frame - Precut Mat Board Acid-Free Show Kit with Backing Board, and Clear Bags Textured White 16x20 Photo Matte For a 20x24

20x24 Dual Black/White Backer Board - Shop Now

Pack of 20, 20x24 Backing Board, Backings, Photo Frame Mat Backing

20x24 Distressed/Aged Complete Wood Picture Frame with UV Acrylic

Foam Board

Top Products: Best Sellers in Office Products - Foam Boards

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star-bullet.jpgLaminated both sides with white alpha-cellulose virgin pulp acid free,lignin free paper, providing a smooth surface and clean cuts.

Foam Core Backing Board 3/16 White 20x24- 250 Pack. Many Sizes Available. Acid Free Buffered Craft Poster Board for Signs, Presentations, School

Golden State Art, Pack of 10 of 20x24 White Pre-Cut

Viewpoint Acid Free Foam Core Backing Boards

Amanti Art Blanco White Wood Picture Frame Opening Size 20x24 in.

The opening size is 10.5x13.5 for 11x14 print. The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch). The re-sealable adhesive strip of the clear bag is below the opening of the bag instead of on the flap.

Golden State Art, Pack of 10 White 8x10 Picture Mats Mattes with White Core Bevel Cut for 5x7 Photo + Backing +Bags

Foam Board

Backer Boards - Surface Prep - The Home Depot