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ACX plywood: A high-grade, exterior plywood, with an "A" side and a "C" side; the "A" side has a higher-grade of laminate, and fewer voids or blemishes.
Blocking: A piece of wood used to fill a space between framing members to stabilize a joint.
Concrete expansion bolt: An anchoring device having an expandable socket that swells as a bolt is tightened into it, used to attach framing members to concrete or masonry.
Dead load: The load generated by the weight of the bouldering wall itself.
Framing Connector: A metal bracket or plate used to connect framing members.
Header joist: A framing member which crosses and supports the ends of joists transferring their weight to parallel joists or studs.
Joist: One of a series of parallel beams used to support floor or ceiling loads in a house.
Joist hanger: A metal bracket that holds the end of a joist in place.
Kicker panel: A short vertical panel at the base of steep walls.
Live load: The moving or moveable external load on a structure. (i.e., the load generated by a climber on the wall.)
Plate (top or bottom): A horizontal framing member that runs along the top or bottom of a wall carrying the load of the studs.
Sleeper: A horizontal framing member that is laid flat, on its widest side.
Stud: One of a series of vertical structural members which acts as a supporting element in a wall.
Stud finder: A device that locates framing members that are covered by wall board.
Toenail: To drive nails or screws at an angle through the face of one member into the side of the adjoining member.
T-nut: A self-anchoring fastener used to attach climbing holds to plywood panels, consisting of a threaded sleeve and a pronged backer plate.
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