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. Trimmers are installed parallel to the primary floor or ceiling joists and support headers, which run perpendicular to the primary joists.¹²

It can also refer to a jack stud that supports a header above a window or door opening.

Traditionally, a stud which was less than full length was sometimes referred to as a cripple.³⁴⁵

References

"Architectural Graphic Standards Online". Retrieved 2016-07-25.
Ching, Francis D. K. (2001). Building Construction Illustrated, 3rd Edition. John Wiley & Sons, Inc. pp. 4.21, 4.31. ISBN 0-471-35898-3.
Glossary, building terms, word definitions. Define Cripple Stud
Hometime Glossary – Framing
Building a Wall 3 - Three Stud Corner and Windows | DoItYourself.com

[1] "Architectural Graphic Standards Online". Retrieved 2016-07-25.

[2] Ching, Francis D. K. (2001). Building Construction Illustrated, 3rd Edition. John Wiley & Sons, Inc. pp. 4.21, 4.31. ISBN 0-471-35898-3.

[3] Glossary, building terms, word definitions. Define Cripple Stud

[4] Hometime Glossary – Framing

[5] Building a Wall 3 - Three Stud Corner and Windows | DoItYourself.com

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