› black-acid-free-28x40-picture

Our Acid-Free matboards are 4-ply and feature a White Core. With an overall size of 28 x 40 these mats fit perfectly into 28 x 40 frames. Each mat is bevel cut to enhance your 24 x 36 photos. The actual mat opening size is 23.5 x 35.5 inches so that it...