Premium wide plank engineered flooring, shown in walnut, is an excellent alternative to solid wood in regions with high humidity. Made with the same strong, dense grain heartwood as the company’s solid wood options, the engineered flooring includes 11-ply Baltic Birch Stabilicore backing. The planks are offered up to 10 inches wide with a 3/16-inch wear layer. Carlisle Wide Plank Floors.