What is a trimmer stud used for?
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. Trimmers are installed parallel to the primary floor or ceiling joists and support headers, which run perpendicular to the primary joists.
What is another name for trimmer studs?
jack stud
The jack stud is sometimes called a trimmer stud. The term “jack” derives from mid–16th century England, where it referred to a lad, knave, or common man: Jack: (1) A man of the common people, a lad, fellow, chap, especially a low-bred or ill-mannered fellow, a knave.
What is meant by trimmer joist?
1. Also called: trimmer joist. a beam in a floor or roof structure attached to truncated joists in order to leave an opening for a staircase, chimney, etc. 2. a machine for trimming timber.
What is a roof trimmer?
The cut ends of the rafter/joist will need to have new support introduced – usually achieved by fixing two pieces of timber together which span across the new opening on either side. These double timbers are called ‘trimmers’.
Do you need cripple studs?
There is no code requirement that I am aware of to use cripple studs if they are not needed. I put in two headers in my house, both are steel beams, neither has any cripple studs as the headers are tight against the existing wood double top plate.
Why is it called a cripple stud?
Both cripple studs and cripple rafters are made from the same stock as other studs and rafters—they’re just cut shorter. Trivia: The term “cripple” probably originated from the Old English crypel, meaning a person disabled from lack of use of a limb.
Is a cripple stud the same as a jack stud?
It’s a piece of 2x stock laid flat and nailed between the jacks. Cripples are short pieces of 2x stock that run underneath the saddle. Cripples are located at the points where a common stud would have been located had it not been interrupted by the opening.
How far apart do most common floor joists have to be?
Floor Joist Spacing: How Far Apart Are Floor Joists in a House? Floor joists are typically 12”, 16”, or 24” apart in a home. Most common spacing for floor joists is 16” o.c. You’ll notice that the joist span tables also include 19.2” on center as an option.
What is common joist?
: one of the ordinary floor beams to which flooring planks are secured.
What does a king stud do?
Nailed to the jacks are full-height studs called king studs; they support the assembly between the plates. Sometimes jacks must be doubled on wide openings so there’s enough supporting surface for the header to bear on. Jacks can be replaced with a steel header hanger attached to the king stud.
What is a king stud in construction?
A king stud is a vertical structural element that is placed off layout adjacent to a framed opening on each side, such as a door or window. It is the same length as the common studs in the wall and fastened in a similar manner.
Can you remove a cripple stud?
Yes, framed for a load bearing wall, everything between jacks (to 2×10) can be removed (horizontals and short cripple studs).
What is a trimmer 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. 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.
What is Trimmer construction?
Trimmer (construction) 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.
What is a jack stud framing?
Jack studs and king studs. The header is supported by a jack stud at each end. Jacks, sometimes called trimmers, fit under each end of a header, and they transfer the load that the header carries down to the bottom plate and the framing beneath. Nailed to the jacks are full-height studs called king studs; they support the assembly between the plates.
What is a king stud framing?
A king stud is one of the most important framing members in building construction. These studs support tremendous amounts of weight and pressure from the other framing members in the wood-framed home. Usually placed on both sides of an opening, such as a window or door, the king stud must be solid, free of defects, straight and dry.