Dome pan {Ans: Metal or fiberglass concrete form used for two-way joist system}Precast {Ans: Concrete structural elements that have been cast at a casting yard and raised into position using a crane}End Joist {Ans: The first and last joists in a floor system; they run parallel to the common joist}Rough Opening {Ans: Dimension shown on the drawings that indicate the distance from the inside edge of one trimmer joist to the inside edge of the opposing trimmer joist}Lateral Pressure {Ans: Sideways pressure against a structure, such as a foundation}Span {Ans: The distance between structural supports such as walls, columns, piers, beams, or girders}Crown {Ans: The highest point of the curved edge of a framing member}Foundation {Ans: The supporting portion of a structure, including the footings}Floor Truss {Ans: An engineered assembly that is used to support floors}Tail Joist {Ans: Short joist that runs from an opening to a bearing}Dead Load {Ans: The weight of permanent, stationary construction and equipment included in a building}Single-layer floor system {Ans: Combined subfloor and underlayment: typically installed where direct application of carpet or tile, to the floor is intended}Two-layer floor system {Ans: Floor