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Definition of the term Jack Post

A type of structural support made of metal which can be raised or lowered through a series of pins and a screw to meet the height required. Basically used as a replacement for an old supporting member in a building.…

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Definition of the term J Channel

Metal edging used on drywall to give the edge a better finished appearance when a wall is not "wrapped." Generally, basement stairway walls have drywall only on the stair side. J Channel is used on the vertical edge of the…

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