AUEAR, White 16x20 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Photo Mat Boards 1/16 Thick, 10 Pack

10 sheets 16x20 black uncut mat boards / matboards. These are acid free matboards. Standard 4 ply: 1/16 inch. Outside Dimensions: 16x20 inch. Perfect

AUEAR, Black 16x20 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Photo Mat Boards 1/16 Thick, 10 Pack

Mat Board Center, Pack of 10, 11x14 for 8x10 African South Korea

Mat Board Center, Pack of 25, 16x20 White Backing Boards - 4-ply Thickness - for Pictures, Photos, Framing Support - Great for DIY Projects, Art, Prints

Frametory, 12x18 Black Uncut Picture Mat Boards, Backing Boards for Frames, Photos, Crafts - Pack of 12

Golden State Art, Uncut 18x24 White Mats Matboards

Ansel Adams - AbeBooks

This item comes with 25 single backing boards. Overall size is 16x20 inches and fits 16x20 frame. Backing board is 4-ply (1/16 inch) thick. Color is

Golden State Art, Pack of 25 16x20 White Backing Board Matboard - for Photos, Frames, Artworks and More - 4-ply Thickness

Pack of 10 uncut 16x20 picture mats, mat boards Outside Size: 16x20 (Fits for 16x20 frame) White Color, White Core, Acid Free 4-Ply Thickness: 1/16

Golden State Art, Uncut 16x20 White Mats Matboards, Acid Free, for Photos, Frames, DIY Projects (10 Pack, 16x20 Inches)

16x20 Custom Premium Matboard

Pack of 10 uncut 16x20 picture mats, mat boards Outside Size: 16x20 (Fits for 16x20 frame) White Color, White Core, Acid Free 4-Ply Thickness: 1/16

Golden State Art, Uncut 16x20 White Mats Matboards, Acid Free, for Photos, Frames, DIY Projects (10 Pack, 16x20 Inches)