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
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)