At its core, molding is simply a strip of material with a carved profile of repeating design patterns. These patterns may be smooth or ornate. Moldings were originally designed to hide the seams where walls meet the floor and ceiling. Over the years, their ability to serve as ornamentation was rightly recognized. Nowadays, moldings are a staple of upscale yet affordable interior design.
While they were originally made of wood or heavy plaster, polyurethane millwork has become an increasingly popular option for moldings of all kinds. This durable material avoids the downfalls of real wood and plaster moldings, which are prone to cracking, splitting, rotting, crumbling, and scratching.