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Term Definition
Outfall Sewer. A large sewer leading from the lower end of the collecting system to the place of disposal.  
Outlet Box. A box or container which houses an electrical outlet and its connections.  
Outlet. 1.An electrical receptacle into which appliances may be plugged. 2. A way out; an exit.  
Outline Lighting. An arrangement of incandescent lamps or gaseous tubes to outline and call attention to certain features such as the shape of a building or the decoration of a window.  
Outline Specifications. An abbreviated form of specifications normally produced with schematic design or design development drawings.  
Outrigger Scaffold. A work scaffolding supported on outrigger beams cantilevered out from the building or structure being worked on.  
Outrigger, Flagpole. see Flagpole Outrigger.  
Outrigger. A structural member projecting from a main structure to provide additional stability or to support something, such as an outside scaffold.  
Outside Four Inches. The single tier of stretcher courses on the face of the wall.  
Oven, Bake. see Bake Oven.  
Oven, Convection. see Convection Oven.  
Oven, Wall Mounted. see Wall Mounted Oven.  
Ovendry Wood. Wood dried to a relatively constant weight in a ventilated oven at 102 to 105° C.  
Overatomized. Dispersed too finely by use of excessive atomizing air pressure.  
Overcertification. The process of an architect or engineer certifying more than the proper amount to be paid to a contractor.  
Overcoat. second coat; topcoat.  
Overcurrent Device. Any device that limits the current in a wire to a predetermined number of amperes.  
Overcurrent. An electrical current that is in excess of the capacity of the wiring and devices.  
Overflow System. surface water collection or draw-off arrangement.  
Overflow. An opening to allow rainwater to overflow after it reaches a predetermined height, commonly 2 inches in the case of roof drains.  
Overglaze Decoration. A ceramic or metallic decoration applied and fired on the previously glazed surface of ceramic ware.  
Overhand Work. A complete wall that is built from a scaffold that is located only on one side of the wall; the outside or farther face brickwork is laid by reaching over the wall.  
Overhang Beam. A beam that is supported by two or more supports and has one or both ends projecting beyond the support.  
Overhang. 1. The part of a roof that extends beyond the exterior walls of the building. 2. An overhead projection from the wall. 3. A leaning of the wall face away from the vertical.  
Overhead Concealed Closer. A door closer concealed in the head frame with an arm connecting with the door at the top rail.  
Overhead Door. A door, commonly used in garages and warehouses, that opens upward from the ground.  
Overhead. All of the indirect costs which can not be directly related to a unit of production and which must be included in the cost of the sale by some allocation method.  
Overimprovement. An improvement of excessive size or cost in comparison with similar properties particularly when it is not the highest and best use of the land.  
Overlap. 1. The width of fresh paint covered by next layer. 2. Protrusion of weld metal beyond the bond at the toe of the weld.  
Overlay Cabinet Construction. A method of building cabinets where the doors and drawer fronts are in front of the face frame.  

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