- Oak
- A light-colored hardwood commonly used in furniture.
- Office Chair
- An adjustable, wheeled chair on a pivoting base.
- Office Furniture
- Desks, file cabinets, chairs, and other furniture used in an office.
- Office L Desk
- An L-shaped desk that sits in the corner of an office.
- Ogee
- A molding edge with an S-shape.
- Oil Tanned
- Leather that has been tanned using oils that make it more soft and pliable.
- Olefin
- A soft upholstery that is resistant to mildew and thus very useful in humid climates.
- Ottoman
- An upholstered foot rest or low stool with no back.
- Overhead Floor Lamp
- A lamp with a wide base and one or more lights mounted at the end of long, arched arms which reach overhead, allowing the lamp to hang over furniture.
- Ovolo
- A convex molding shaped like a quarter-circle, fitted into a corner for decoration.
