A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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. See Monopost.
Jack rafter– A rafter that spans the distance from the wall plate to a hip, or from a valley to a ridge.
Jack rafter (Timber Roof Structures) – special rafter used in hip construction.
Jamb– The side and head lining of a doorway, window, or other opening. Includes studs as well as the frame and trim.
Joint– The location between the touching surfaces of two members or components joined and held together by nails, glue, cement, mortar, or other means.
Joists – Parallel beams of timber, concrete or steel that run parallel to one another for supporting floors or ceilings, etc.
Joist hanger– A metal “U” shaped item used to support the end of a floor joist and attached with hardened nails to another bearing joist or beam.