American Trim and Window produces the following types of Curved Wood Trim for interior or exterior use: Curved Jambs, Base, Chair Rails, and Casing 1/4 Rounds, 1/2 Rounds, Full Rounds Ellipticals, Ovals Eyebrows Custom Windows Transoms Arched Door Units and Round Top Door Units Custom wood trim products can use Oak, Walnut, Pine, Poplar, Cherry, Mahogany and other wood species.