Our acid-free matboards are 4-ply and feature a white core. With an overall size of 16 x 20 these mats fit perfectly into 16 x 20 frames. Each mat is bevel cut to enhance your 13 x 19 photos. The actual mat opening size is 12.5 X 18.5 Inches so that it may safely and securely display your 13 x 19 photo artwork needlepoint sign etc. Brand: CountryArtHouse
