Window trimmer stud. Types of wall studs. King jack and cripple studs shall be of the same dimension and thickness as the adjacent wall studs. In light frame construction a trimmer is a timber or metal beam joist used to create an opening around a stairwell skylight chimney and the like. A trimmer or trimmer stud is a component of a framed structure that provides additional support for an opening such as a door or window.
Jack studs and king studs. They are also known as trimmer studs or simply trimmers and their function is to support the top of the door or window opening which is known as the header. Trimmer or jack stud to the left or right of a window or door that runs from the bottom plate to the underside of a lintel or header. Jerry riga via email.
Cripple stud a stud located either above or below a framed opening that does not run the full height of the wall. This is an interesting question with no clear answer. Three 90 45 mm plus the doubling stud gives the required 180 mm trimming stud. Because this lintel is less then 400 mm down the doubling stud can be included in the total width of the trimming studs see figure 5.
Used in conjunction with c section side rails c section window trimmers provide the necessary surface fixings for windows claddings and associated flashings. Trimmer studs can extend from the header to the bottom plate or they can be interrupted by the window sill. Nailing nailing of built up members was covered in. Both framing methods have advantages and disadvantages.
The saddle stud is the horizontal stud that forms the bottom of a window opening. Post or column a doubled or other integral multiple of a group of studs nailed side. When the opening is greater in width than the stud spacing and most windows are wider than 24 in. Headers shall be connected to king studs in accordance with table r60372 and the following provisions.
Then a header must be inserted to carry the load of the interrupted studs. It can also refer to a jack stud that supports a header above a window or door opening. The header is supported by a jack stud at each end. Trimmers are installed parallel to the primary floor or ceiling joists and support headers which run perpendicular to the primary joists.
Trimmers are needed to ensure that the structure remains stable and retains its structural integrity despite the creation of openings because openings can create weak points in a structure. A header is a simple beam sized to support the load above the opening it spans. The number of jack and king studs installed on each side of a header shall comply with table r60371.