# Trimmer (construction)

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Trimmer_(construction)
> Markdown URL: https://mediated.wiki/source/Trimmer_(construction).md
> Source: https://en.wikipedia.org/wiki/Trimmer_(construction)
> Source revision: 1312846326
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

In [light-frame construction](/source/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](/source/Framing_(construction)#Lintels_(headers)), which run perpendicular to the primary joists.[1][2]

It can also refer to a [jack stud](/source/Wall_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](/source/Cripple).[3][4][5]

## References

1. **[^](#cite_ref-1)** ["Architectural Graphic Standards Online"](https://www.graphicstandards.com/gs/landing.html#searchQuery?searchQueryString=trimmer). Retrieved 2016-07-25.

1. **[^](#cite_ref-2)** Ching, Francis D. K. (2001). [*Building Construction Illustrated, 3rd Edition*](https://archive.org/details/isbn_9780471358985/page/4). John Wiley & Sons, Inc. pp. [4.21, 4.31](https://archive.org/details/isbn_9780471358985/page/4). [ISBN](/source/ISBN_(identifier)) [0-471-35898-3](https://en.wikipedia.org/wiki/Special:BookSources/0-471-35898-3).

1. **[^](#cite_ref-3)** [Glossary, building terms, word definitions. Define Cripple Stud](https://www.buildeazy.com/building_glossary-c.html)

1. **[^](#cite_ref-4)** [Hometime Glossary – Framing](https://www.pbs.org/hometime/glossary/frame.htm)

1. **[^](#cite_ref-5)** [Building a Wall 3 - Three Stud Corner and Windows | DoItYourself.com](https://www.doityourself.com/stry/buildingwallstudwind)

This article about a civil engineering topic is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Civil-engineering-stub)
- [t](/source/Template_talk%3ACivil-engineering-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Civil-engineering-stub)

This architecture-related article is a stub. You can help Wikipedia by adding missing information.

- [v](https://en.wikipedia.org/wiki/Template:Architecture-stub)
- [t](/source/Template_talk%3AArchitecture-stub)
- [e](https://en.wikipedia.org/wiki/Special:EditPage/Template:Architecture-stub)

---
Adapted from the Wikipedia article [Trimmer (construction)](https://en.wikipedia.org/wiki/Trimmer_(construction)) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Trimmer_(construction)?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.