Shoemaker 1600-14X20 14"x20" Floor Grille - Brown This product is designed to fit a 14" x 20" hole. Overall outside dimension is 16-3/8" x 22-3/8". Heavy-duty honeycomb construction; blades run parallel to longest dimension. Paint is a brown, driftwood tan finish. Flush core and frame provides smooth surface; Free area equals more than 75% of nominal size.