Wainscot

These are traditionally interlocking wood, but could be plastic or other materials.
Panelling was developed in antiquity to make rooms in stone buildings more comfortable. In more modern buildings, such panelling is often installed for decorative purposes.Panelling, such as wainscoting and boiserie in particular, may be extremely ornate and is particularly associated with seventeenth and eighteenth century interior design, Victorian architecture in Britain, and its international contemporaries.
Wainscoting
Wainscot or wainscoting (pronounced /ˈweɪnskɔtiŋ/ in American English, /ˈweɪnskɒtɪŋ/ in British English) is a panelling style applied to the lower 3' (900mm) to 5' (1500mm) of an interior wall, below the dado rail or chair rail and above the baseboard or skirting board. It is traditionally constructed from tongue-and-groove boards, though beadboard or decorative panels (such as a wooden door might have) are also common.Wainscoting may also refer to other materials used in a similar fashion.
Wainscoting was once used to cover the lower part of walls which, in houses constructed with poor or nonexistent damp-proof courses, are often affected by rising dampness; it now mainly serves a decorative purpose, however. Its most notable cultural appearance is perhaps as part of a sketch in episode 20 of the comedy program Monty Python's Flying Circus, in which a sheep with a gun is discovered in a home's wainscoting.
Boiserie


Elaborate boiseries in the guild hall of the Zunfthaus zu Kaufleuten, Kramgasse 29, Berne.

Boiserie (often used in the plural boiseries) is the term used to define ornate and intricately carved wood panelling.Early examples of boiseries were unpainted, but later the raised mouldings were often painted or gilded. Boiseries were popular in seventeenth and eighteenth century French interior design and the Palace of Versailles has many fine examples.