Many buildings have some form of decorative moulding, and even if you don't yet know what 'moulding' is you will probably have seen it before.  Moulding, or 'molding' as it is spelt in the United States, is classified as being a decorative building feature usually constructed out of plaster, wood or sometimes plastic.  Previously moulding was carved into solid structures that were already in place, such as marble columns or pillars seen in the ancient period.

Moulding can be used in a large number of situations, from cornicing ceilings to decorative runner boards to ornamental ceiling features, and many more.   Generally it is called upon to help disguise joins or breaks between one material and another (such as wallpaper from plaster, roof from wall, and so on).  Restoration work often requires accurately redesigned moulding to replace damaged old moulds, and new builds too rely upon moulding to create a feel of class and attention to detail.