
Framing Basics 101: How to Frame Windows, Walls, Corners, and Doors
March 27, 2025Framing is a critical part of any construction or remodeling project. Whether you’re building a new home or updating an existing one, proper framing ensures your structure is stable, secure, and built to last. For those tackling DIY projects or working with Boise construction and remodeling professionals, understanding the basics of framing—such as how to frame windows, walls, corners, and doors—is essential for success. In this post, we’ll walk you through the key steps to frame these important elements, ensuring your next Boise remodeling project is strong and well-constructed.
1. Framing Walls: The Foundation of Your Space
Framing a wall is one of the first steps in building or remodeling a space. Walls are what support your structure, define rooms, and provide a base for doors and windows. Properly framing a wall ensures it’s straight, square, and strong.
What You’ll Need:
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2×4 or 2×6 lumber (depending on load-bearing needs)
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Hammer or nail gun
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Nails or screws
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Level
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Measuring tape
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Square
Steps for Framing a Wall:
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Lay Out the Bottom Plate: Start by marking the floor where your wall will go. Use the measuring tape to determine the exact length and position of the wall. Attach the bottom plate (the horizontal piece that runs along the floor) using nails or screws.
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Measure and Cut Studs: Measure the height of your wall and cut your studs (the vertical pieces) to fit. Generally, studs are spaced 16 or 24 inches apart on center. Make sure each stud is level and square to the bottom plate.
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Install the Top Plate: Once all studs are secured to the bottom plate, install the top plate (the horizontal piece on top) by lining it up with the studs and securing it with nails or screws.
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Check for Plumb and Squareness: Use a level to make sure the studs are plumb (vertical) and the wall frame is square. This step is essential to ensure your wall is straight and stable.
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Frame for Windows and Doors: When framing walls with windows or doors, you’ll need to leave spaces (called “rough openings”) for these features. Be sure to frame headers (horizontal pieces above windows or doors) to support the weight above.
2. Framing Windows: Creating Strong, Square Openings
Framing windows requires a little more attention to detail because you need to ensure the rough opening is square and level. This is key to fitting your window properly and ensuring it functions as intended.
What You’ll Need:
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2×4 or 2×6 lumber
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Measuring tape
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Square
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Saw
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Level
Steps for Framing Windows:
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Determine the Window Size: Measure the size of the window you’re installing, and add about 1-1/2 inches to the width and 1/2 inch to the height to create the rough opening. This gap ensures the window can fit in the frame comfortably.
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Frame the Header: For larger windows, you’ll need a header above the window to bear the load of the wall above. Cut and install a header made of two or more pieces of lumber stacked on top of each other.
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Install the Jack and King Studs: Install two vertical studs on each side of the window opening. The king studs run from the floor to the top plate, while the jack studs are shorter and support the header.
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Check the Opening for Squareness: Use a square to make sure the rough opening is square. Adjust the studs as necessary, ensuring that the window will fit properly.
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Install the Sill: Finally, install a sill (horizontal piece at the bottom) that the window will rest on. Ensure it is level and securely attached.
3. Framing Corners: Creating Strong, Secure Joints
Corners are critical areas that need to be properly framed to ensure the structure’s stability. Whether you’re framing a 90-degree corner or a more complex angle, strong joints are necessary to prevent movement and shifting.
What You’ll Need:
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2×4 or 2×6 lumber
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Square
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Nails or screws
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Hammer or drill
Steps for Framing Corners:
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Determine the Corner Type: The two most common types of corner framing are the “three-stud corner” and the “cripple-stud corner.” The three-stud corner is simple and works for standard 90-degree angles. The cripple-stud corner, used for larger walls or angled corners, is a bit more complex.
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Cut and Install the Corner Studs: For a three-stud corner, install the corner studs by cutting them to the correct length. Ensure the studs meet at a perfect 90-degree angle. For a cripple-stud corner, install additional studs at the corner to create extra strength.
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Frame with Bracing: Install diagonal bracing or corner bracing if necessary to ensure the corner is sturdy and stable. This bracing will prevent the corner from bowing or shifting over time.
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Check for Square and Plumb: After framing the corner, check it with a square to ensure it’s perfectly square and plumb. This ensures that your walls will align properly.
4. Framing Doors: Building Strong, Functional Openings
Framing a door opening is similar to framing for windows but requires a larger rough opening and a bit more attention to structural integrity. Properly framing doors will allow them to function smoothly and align with the wall.
What You’ll Need:
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2×4 or 2×6 lumber
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Measuring tape
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Saw
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Square
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Level
Steps for Framing Doors:
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Measure the Door Size: Measure the width and height of the door to determine the size of the rough opening. Add 2-1/2 inches to the width and 1/2 inch to the height to ensure the door fits easily.
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Install the Header: Just like with windows, you’ll need to install a header above the door opening. The header supports the weight of the wall above the door.
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Install King and Jack Studs: Place the king studs on either side of the opening and cut the jack studs to the appropriate length. The jack studs support the header.
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Level and Square the Opening: Make sure the rough opening is level and square using a level and square tool. This ensures your door will fit perfectly.
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Install the Sill (If Applicable): If your door has a threshold or sill, install it at the bottom of the door opening. Make sure it is level and secure.
Final Thoughts
Proper framing is essential for a solid, well-built structure. Whether you’re framing walls, windows, corners, or doors, taking the time to measure and install correctly will ensure that your building or remodeling project is strong and stable. If you’re unsure about any of these steps, working with an experienced Boise general contractor or remodeling contractor can help you get the job done right.
Ready to get started on your next framing project? Contact us today to discuss your construction or remodeling needs with our team of Boise remodeling contractors.