Brickmold is used as casing around exterior doors. It is molding around the window and door frames that abuts the exterior facing material of the building and serves as an aesthetic boundary between the siding and the frame; most commonly used in pre-hung units. It is also known as trim, casing and and an architrave. Brickmold can be made of different materials: fingerjoint pine, composite (e.g. extruded pvc), vinyl or stain grain wood. The key differences between material are the cost and the durability (more durable = more expensive).