18x24 Pre-cut Mat with Whitecore fits 12x18 Picture + Backing + Bags

Double Mats : 20X30 For 18X24 Artwork

Our Acid-Free matboards are 4-ply and feature a White Core. With an overall size of 8 inch x 10 inch, these mats fit perfectly into 8 inch x 10 inch frames. Each mat is bevel cut to enhance your 6 inch x 8 inch photos. The actual mat opening size is 5.5 inch x 7.5 inch inches so that it may safely and securely display your 6 inch x 8 inch photo, artwork, needlepoint, sign, etc.

12x18 Mat for 18x24 Frame - Precut Mat Board Acid-Free Soft Pink 12x18 Photo Matte for A 18x24 Picture Frame, Premium Matboard for Family Photos, Show

Pre-Cut Mat Board Show Kit 8ply Museum Rag White, Backs, Clear Bags

10 of 18x24 White Pre-cut Acid-free whitecore mat India

18 x 24 Mats Pre-cut for 12x18-inch pictures, photos, artworks Mat Opening Size: 11.5 x 17.5” White Core, 4-ply (1/16in - 1.4mm), Bevel Cut, Acid Free

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

8x10 Double Mat For 5x7 Photos

12x18 Mat for 18x24 Frame - Precut Mat Board Acid-Free Black 12x18 Photo Matte Made to Fit a 18x24 Picture Frame, Premium Matboard for Family Photos, Show Kits, Art, Picture Framing, Pack

Easy Way to Mount a Poster with Mat Board Yourself - ReStyleGraphic

ArtToFrames 22x28 Matted Picture Frame with 18x24 Single Mat Photo Opening Framed in 1.25 Black and 2 Mat (FWM-3926-22x28)

Ophelia

Pack of 25 sets of 11x14 for 8x10 Photo White Mat Matte Board with Bac – Prophotographygear