Glossary

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O.C. "On Center". A measurement term meaning a certain distance between like materials. Studs, rafters, joists, and the like in a building placed at 16 inches O.C. will be laid out so that there is 16 inches from the center of one stud to the center of the next.
O.G. (or Ogee) A molding with a profile in the form of a letter S; having the outline of a reversed curve. - A molding with a profile in the form of a letter S; having the outline of a reversed curve.
Ohmmeter In electrical contracting, a device to measure the resistance across a load. They are never used on a live circuit. It is used to track down broken wires.
Ohm’s Law States that, in a given electrical circuit, the amount of current in amps is equal to the pressure in volts divided by the resistance in ohms. The formula is: I (Current) = V voltage or V = I x R R resistance or R = V/I
Open Banister Log Posts, rails and spindles or dowelled balusters used in place of walls around stairwells.
Open Gable Porch A Gable Roof with a cathedral ceiling with log tie beams and sometime king posts and diagonals at the end to create a truss look.
Order Contract term used after the sale of a home package.
Organic A term designating any chemical compound which contains carbon and hydrogen.
Oriented Strand Board (OSB) A building panel composed of long shreds of wood fiber oriented in specific directions and bonded together with glue under heat and pressure.
Outrigger An extension of a rafter beyond the wall line. Usually a smaller member nailed to a larger rafter to form a cornice or roof overhang.
Overhang That part of the roof structure which extends horizontally beyond the vertical plane of the exterior walls of a building.
Oxidize To combine with oxygen in the air.

 

N5821 County Road S | PO Box 902 | Plymouth, WI 53073 | (800) 707-0449