Treads are long rectangular capstones used on stairs, front doorsteps, wall capping, and pool coping. The length of the tread can minimize the number of grout joints for a flawless design structure. Additionally, they can be used as mantels and hearths for fireplaces. Lime Black comprises shades of black and charcoal. It is the perfect color for your interior staircase and accentuates the overall look of your place by becoming the focal point of the design. The dark color of this stone has the ability to blend in or contrast a wide range of colors.