Cavetto
Cavetto is a concave molding that is a quarter-round. It is used for crown molding as a transition from wall to ceiling planes.

Cyma Recta
Cyma recta has a concave curve over a convex curve. It is essentially a cavetto over an ovolo and was traditionally used in Classical architecture in the cornice and architrave.

Cyma Reversa
Cyma reversa, also called an Ogee, is the opposite of cyma recta; it has a convex curve over a concave curve. Like Cyma Recta, it was used in Classical architecture in the cornice or architrave of a building.

Ovolo
Ovolo is a convex molding that is a quarter-round. It is a Classical molding that is often seen with decorative motif on it.

Scotia
Scotia is a concave molding that curves to a half-round creating a semi-circle or half an ellipse. It was typically used in Classical architecture at the base of a column.

Torus
Torus is a convex molding that is a semi-circle or semi-ellipse. It might be used along the lower section of a cabinet and was commonly seen in the base of Classical columns.

Hood
Hood molding is the projection from a wall over an arch. This type of molding, seen typically in Gothic architecture, was used to protect the archway from rainwater. It also serves as a decorative frame for the top of an arch.

Label
Label molding is a horizontal projection over a window or doorway that drops vertically to about a third of the way down the sides of the opening. This type of molding, like hood molding, is used to divert rainwater away from a doorway or window. Label molding was used in Gothic and Tudor architecture.