Our Acid-Free matboards are 4-ply and feature a White Core. With an overall size of 8.5 x 11 these mats fit perfectly into 8.5 x 11 frames. Each mat is bevel cut to enhance your 5.5 x 8.5 photos. The actual mat opening size is 5 x 8 inches so that it may safely and securely display your 5.5 x 8.5 photo artwork needlepoint sign etc.
