16x20 Mat With 8x10 Opening

Two 8x10 Openings in a 21x15 Mat

16x20 Matted Frame For 8x10 Photo

Nielsen & Bainbridge Mat - Fits Gallery Frame, 16x20 Mat with 8x10 Opening, Centered Reviews

Bainbridge Artcare Museum Gallery Mat - White with Black Core

THIS IS FOR ONE SINGLE MAT without backing and bags , Featuring a picture opening for a 8x10 inch photo, to fit in a 16x20 inch picture frame. Photo

16x20 Mat for 8x10 Photo - Precut White with Black Core Picture Matboard for Frames Measuring 16 x 20 Inches - Bevel Cut Matte to Display Art

16x20 Mat With 8x10 Opening

THIS IS FOR A PACK of 10 Mats only w/o backing boards or bags, Featuring a picture opening for a 8x10 inch photo, and a 16x20 inch overall size.

8x10 Mat for 16x20 Frame - Precut Mat Board Acid-Free White 8x10 Photo Matte Made to Fit a 16x20 Picture Frame, Premium Matboard for Family Photos

16x20 Matted To 8x10

Archival matting for 8x10 picture frames with 2 windows to fit

11x14 Picture Mats For 8x10 Photos

Double Mats : 20X24 For 16X20 Artwork

16x20 Mat

DIY Custom Matting + Framing for Cheap

Nielsen & Bainbridge Mat - 16x20 with 8x10 Opening GB10L B&H