Global Product 75811 3/16 In. x 4 Ft. x 8 Ft. True White Beadboard Panel Is it solid pvc? The Global Product 75811 3/16 In. x 4 Ft. x 8 Ft. True White Beadboard Panel is made of particle board with an eucalyptus hardboard substrate. It is designed to mimic the look of real beadboard and comes pre-primed and pre-finished.