Stairtek Unfinished Modern Square Nose Red Oak 5/8 in. T x 11.5 in. W x 60 in. L Retrofit Stair Tread, $69.99 USD/Box, LL Flooring (Lumber Liquidators)

Stairtek offers an unfinished modern square nose red oak retrofit stair tread. Measuring 5/8 inches thick, 11.5 inches wide, and 60 inches long, it is designed for easy installation. Priced at $69.99 per box, this product is available at LL Flooring.