This NSF StayFlat® Sheet Pan is a third-size, commercial-grade baking pan engineered for durability and precision. Constructed of 16 gauge aluminum with a sanitary open bead, semi-curled rim, this pan features StayFlat® technology which increases pan strength and longevity. The NSF certification ensures that this pan meets strict sanitation and safety standards. This pan’s overall size is 17-3/4" x 9-5/16" x 1".