The opening size is 15.5"x19.5" for 16x20 print + backing board

The mats are cutted at beveled.

 Our acid-free whitecore matboards are a 4-ply papermat that provide the aesthetic and design benefits of a bright white bevel with a white core and a white backing. It can be used for matting photos, art, and needlepoint. Also great for crafts, backboards, signs, children's projects, and school projects.

Quantity 1 = 10 mats and 10 backing.

(Free Shipping available for continental US only. For PR, Alaska, Hawaii, APO and FPO please email us first)