Highest quality, high-grade railing. Assembled section. For step or platform railing. Channel is 1-1/4" wide and 1" deep. Rails are 28" high and have 6" spindle spacing. No. 574: Nominal Dimensions: 36" H x 4" L, Material: Wrought iron, Style: Windsor Plus, Color: Black No. 576: Nominal Dimensions: 36" H x 6" L, Material: Wrought iron, Style: Windsor Plus, Color: Black