For projects the need something sturdier than poster board and more economical than foam board, 20 x 30 corrugated sheets are the answer. Choose from bleached white and 9 vibrant colors with kraft on one side. Also offered in 22 x 28 project sheets with vibrant color on each side. Cork and white foam board combine for a multi-purpose project sheet. Can be mounted or framed, cut to size or used as is.