10 sheets 16x20 white uncut mat boards / matboards. These are acid free matboards. Standard 4 ply: 1/16 inch. Outside Dimensions: 16x20 inch. Perfect
15 sheets 5x7 white uncut mat boards / matboards This package comes with 15 uncut white core matboards Great for cutting your own mats for photos, art
AUEAR, White 5x7 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Backing Boards 1/16 Thick, 15 Pack
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)
15 sheets 8x10 white uncut mat boards / matboards. This package comes with 15 uncut white core matboards. Great for cutting your own mats for photos,
AUEAR, White 8x10 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Backing Boards 1/16 Thick, 15 Pack
AUEAR, White 12x12 Uncut Mat Matte Boards For Picture Framing, Print, Artwork
16 x 16
This item comes with 20 single backing boards. The outside size is 16x20 and fits a 16x20 frame.
Golden State Art, 16x20 White Backing Board for Frames, DIY Projects, Photos (20 Pack)
Mat Board Center, 20 Pack 16x20 Backing Board - Full
Glossary Of Picture Framing Terms
Frametory, 8x10 White Uncut Picture Mat Boards, Backing Boards for Frames, Photos, Crafts - Pack of 12
16x20 Custom Premium Matboard
These are new 22x28 inch Quality Picture Mats. The Openings are Bevel cut 15.5 inch x 19.5 inch to fit a 16x20 photo or print. These mats are cut from Quality white core mat board and are excellent for framing photos or prints.
CustomPictureFrames 24x36 White Picture Mats Mattes Matting with White Core, for 20x30 Pictures
Winnipeg, Glossary Of Picture Framing Terms
15 sheets 5x7 white uncut mat boards / matboards This package comes with 15 uncut white core matboards Great for cutting your own mats for photos, art
AUEAR, White 5x7 Uncut Mat Matte Boards for Picture Framing, Print, Artwork - Backing Boards 1/16 Thick, 15 Pack