This moulding is crafted in the concave cove style. This can create a detailed transition between a vertical base and a projecting architectural element. The possibilities are many at Architectural Depot. This moulding measures 16' feet in length, which makes it perfect for projects that require longer spans of trim. Detailed door and window moulding does wonders for the home exterior. It easily gives you the visual punch and refined detail that you seek, all made possible by versatile and durable urethane. This cove moulding style is crafted with precision in high-density polyurethane foam, a dense material that is also light in weight. It is also primed when molded.