18x24 Conservation DOUBLE Mat Fits 12x18 Photo/art or Customize for Your Size

18x24 Conservation DOUBLE Mat Fits 12x18 Photo/art or Customize for Your Size

Golden State Art,11x14 Pre-cut Double Mat with Whitecore fits 8x10 Picture

Blick Double Mat - Smooth White/Smooth Black, 18 x 24 (12 x 18 Opening)

Comes with frame, Plexi Glass, mat , backing and a wire hanging set (hardware as shown in the photos) for wall hanging. Finished Frame Dimensions

ArtToFrames Collage Photo Frame Double Mat with 2-18x24 inch Openings with Black Frame and Amber Top Mat

MBC MAT BOARD CENTER, Pack of 10-18x24 Pre-Cut 12x18 - White Mats - for Pictures, Photos, Framing - Kit Includes: 10 White Backboards and 10 Clear Bags - Acid Free, 4-ply Thickness, White Core

18 x 24 Double Mat By Studio Décor®, 12 X 18 Opening

18x24 Custom Premium Double Matboard

18 x 24 Mat By Studio Décor®, 12 x 18 Opening

Comes with frame, Plexi Glass, mat , backing and a wire hanging set (hardware as shown in the photos) for wall hanging. Finished Frame Dimensions

ArtToFrames Collage Photo Frame Double Mat with 2-18x24 inch Openings with Black Frame and Amber Top Mat

How to Choose Your Mat Board Size - Mat Board Center