Drywall Wider Than Door Jamb

The door jamb is standard 4 11 16 wide which leaves an extra 7 16 or nearly 1 2 an inch to play with.

Drywall wider than door jamb.

But 20 years ago i experimented with drywall returns on the windows and doors in my own house. Tools used on this job. Not everything is perfect. Even without measuring you can do the math.

Calculate the difference in. I have a wall that is measured at 4 1 4 thick standard 2x4 with 3 8 drywall on both sides. There is really only one good solution. Most framing studs are 3 1 2 inches in wide with 1 2 inch thick drywall on both sides for a total thickness of 4 1 2 inches.

When building a door jamb to fit a standard wall with a two by four frame and 1 2 inch drywall on each side the width of the jamb board typically is 4 9 16 inches. The door jamb is the frame that installs in the wall and supports the door via hinges. This thickness is designed for installation in a standard two by four wall constructed by studs that are. One detail i ve noticed is that drywall returns on windows are far more common than wood extension jambs and casing.

If the difference is more than that you may have to decide between replacing the door casing with wider material or adding new drywall around the door frame. It s important to know what to do in less than ideal situations. Unfortunately after handing the drywall i noticed the door jamb and window case extends a extra 1 4 out from the wall. Novice mistake of course seeing as this was my first time flying solo.

If the wall is standard 2x4 framing then the door jambs are narrower than standard. It s a common practice to add another 1 8 inch for some leeway to ensure the jamb covers adequately making the average door jamb 4 5 8 inches wide. As stated previously the jamb extensions will give you a headache on the hinge side. If the wall is thicker than the jamb depth the door trim called casing will not fit properly over the jambs and wall surfaces.

If you re not using premade jamb material or if your walls are a nonstandard thickness you can buy 5 or 6 inch wide lumber and rip cut it to the width of the wall using a table saw. As an amazon associate i make. Replace with a new prehung door or make new jambs and rehang the door. Ask question asked 4 years 11 months ago.