Studio Goods Chelsea Walnut 14"x18" Wall Frame: Crafted to the highest standard of archival quality, these precision-joined frames are fitted with a museum quality mat board and an acid-free backing board. Your valued art is fully guarded from sun and light damage by the inclusion of UV Light protective glass. Chelsea features a flat top profile with a rich walnut wood molding. Frame size is 14"x18" with an 11"x14" mat opening.