U
- Undulated
- Mechanically altered to give wavy and worn surface. (See Surface)
- Unframed
- Mirror or medicine cabinet without a surrounding border. On a medicine cabinet the doors are attached directly to the sides of the door.
- Unglazed Tile
- Hard, dense tile of homogeneous composition throughout, deriving color and texture from the materials of which the body is made. The colors and characteristics of the tile are determined by the materials used in the body, the method of manufacture, and the thermal treatment (e.g. quarry tile).
- Union
- Deck, floor, or wall unions for exposed fittings.
- Union Nuts
- Plated nuts. (See nut)
- Unlacquered Brass Finish
- Raw brass which is highly polished creating a warm reflective appearance. If not maintained, the shine will patina due to time, use, and the environment.
- Upholstery
- Furniture covered in fabric, vinyl, leather, or other materials (e.g., chairs, chaise)