7/16" x 1-5/8" Bullnose Stop (D8121) Moulding is a wider-profile interior stop designed to provide secure door and window closure with a clean, contemporary finish. Featuring a smooth bullnose edge, this moulding softens the look of door jambs while delivering a consistent stop surface for proper alignment. The expanded 1-5/8" face offers enhanced coverage, making it an excellent choice for larger casing profiles and upgraded trim packages. Ideal for both new construction and remodeling projects, the D8121 Bullnose Stop combines streamlined style with dependable jobsite performance.