Trimmer Jack Stud

Choose the stud thickness that was obtained in step 2 90 mm in this example see figure 4.

Trimmer jack stud. The maximum load for your 2x6 jack stud i call them trimmers is. The number of jack and king studs installed on each side of a header shall comply with table r60371. Three 90 45 mm plus the doubling stud gives the required 180 mm trimming stud. 1320 x 15 x 55 10890 lbs.

Jerry riga via email. My foreman corrected me and said on real job sites its called a cripple. The header is supported by a jack stud at each end. This is an interesting question with no clear answer.

A header is a simple beam sized to support the load above the opening it spans. I had never heard it called a cripple before. Jack studs or trimmer studsthe name depends on where youre located provide the load path from the header to the bottom or sole plate. King jack and cripple studs shall be of the same dimension and thickness as the adjacent wall studs.

So to answer your question. Jack studs the framer attaches the jack studs on the sides of the king studs that face the opening. Headers shall be connected to king studs in accordance with table r60372 and the following provisions. Jack studs and king studs.

Trimmers are installed parallel to the primary floor or ceiling joists and support headers which run perpendicular to the primary joists. Step 5 trimming stud size now read across to the right column in table 85 to obtain the thickness of the trimming studs 180 mm see figure 4. Neglecting the nailing into the king stud. 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.

When the opening is greater in width than the stud spacing and most windows are wider than 24 in. Then a header must be inserted to carry the load of the interrupted studs. I grew up calling it a jack stud. Dwb is calling it a trimmer.

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. It can also refer to a jack stud that supports a header above a window or door opening. 425 x 15 x 55 3506 lbs. However it sits on a plate and the header sits on it in perpendicular compression so the maximum load it can support without crushing the plate is.

The jack stud is sometimes called a trimmer stud. 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.