millwork
/ˈmɪlwəːk/noun
1Machinery used in a mill or factory; the designing or erection of such machinery.
2 North American Joinery. Wood which has been planed and finished at a sawmill prior to sale; especially such wood used in making window and door frames.
Origin
Mid 17th century; earliest use found in Boyds of Penkill Family Papers. From mill + work.