Tip for installing Door Casing

By Robert Robillard on Finish Carpentry, Workshop tips

Installing Door and Window Trim

One common problem when trimming a window or door is the jamb of the door or window does not come out flush with the interior wall. This causes the trim to rock.  Below is a simple tip for installing door casing.

Tip for installing Door Casing

In many of these cases it is necessary to install “extension jambs.” An extension jamb is a thin strip of wood that makes p the difference between the door jamb and the wallboard. Think of it as a shim to make both surfaces even out.

If the space between the jamb and wall material is small, say 3/16″ of less, you can use this tip with great success.

Tip for installing Door Casing : Flatten drywall

Use your hammer to bang down or crunch the Sheetrock down next to the jamb. Be careful as to not damage the Sheetrock out past the trim width. [i.e., what your trim will cover.]

This method evens out the high spots and allows the trim to sit flush on the wall and jamb.

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About the author

Robert Robillard

Carpenter / Remodeler / Editor

Rob Robillard is “The Concord Carpenter” Rob is a builder, general contractor, carpenter, woodworker, and editor of Concord Carpenter and ToolBoxBuzz As a General Contractor and carpenter, Rob owns and operates Concord Carpenter LLC. A full-service remodeling and construction company. Rob is a recognized leader in home building best practices and a source for how-to information for building professionals. On this website, Rob covers all aspects of home construction, building science, home improvement, woodworking, remodeling, and some of the best product and tool reviews. Rob is in charge of our Tool and Product Review series - Concord Carpenter Videos where we post all of our tool reviews and video tutorials. Rob approaches remodeling and building construction with a pragmatic and problem-solving approach. He enjoys using his knowledge and experience to help and educate building professionals as well as DIYers on best practices in the construction and remodeling industry. He's a strong advocate for "raising the bar" in the construction trades and promoting the trades to youth. #BeAMentor #Green2Great Craftsmanship, quality, and pride guide his journey on this channel The Concord Carpenter's motto: "Well done is better than well said!" : Read more about Rob

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