A quarter round is a convex molding whose cross section is a quarter circle. It is one form of ovolo. A variation is a base shoe, a quarter of an ellipse. Most quarter round is of small gauge and relatively flexible. It is typically used as a decorative build-up element in

mantels The fireplace mantel or mantelpiece, also known as a chimneypiece, originated in medieval times as a hood that projected over a fire grate to catch the smoke. The term has evolved to include the decorative framework around the fireplace, and ca ...

and other architectural features, and at the lower edge of

baseboard In architecture, a baseboard (also called skirting board, skirting, wainscoting, mopboard, trim, floor molding, or base molding) is usually wooden or vinyl board covering the lowest part of an interior wall. Its purpose is to cover the joint b ...

to hide any gaps between it and a floor. Base shoe is used similarly in flooring applications. Quarter round is produced in hardwood, softwood, engineered wood, and extruded plastic.

References

Floors Architectural elements {{architecturalelement-stub