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Step 3 · Frame the Door Opening

Cut two full-height studs (king studs) to frame the sides of the opening. Then, cut two shorter studs (trimmer or jack studs) to support the header. The header, typically a piece of 2x lumber or a doubled-up 2x, will span the width of the opening. Nail the trimmer studs to the king studs, ensuring they are flush with the inside edge of the king studs, and then attach the header across the top of the trimmer studs. Add a sill plate at the bottom if needed. For increased structural integrity, consider adding cripple studs above the header if the opening is significantly shorter than the wall height.

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Step 3 · Frame the Door Opening

Cut two full-height studs (king studs) to frame the sides of the opening. Then, cut two shorter studs (trimmer or jack studs) to support the header. The header, typically a piece of 2x lumber or a doubled-up 2x, will span the width of the opening. Nail the trimmer studs to the king studs, ensuring they are flush with the inside edge of the king studs, and then attach the header across the top of the trimmer studs. Add a sill plate at the bottom if needed. For increased structural integrity, consider adding cripple studs above the header if the opening is significantly shorter than the wall height.

Videos for this step

Frame the Door Rough Opening (Jack Studs, Header, Cripples)Install Door Rough Opening FramingFrame Door and Window Openings

Tools and Materials

← Project

How to Add a Door to an Under-Stair Closet

Step 3 of 6·5.8 hr left

Locate Studs and Mark Opening
30 minutes4 items
Cut Out Existing Wall Material
45 minutes4 items
3
Frame the Door Opening
90 minutes6 items
4
Install Door Jamb and Door
75 minutes5 items
5
Install Door Casing and Trim
60 minutes6 items
6
Install Door Hardware and Finish
120 minutes7 items
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