Building a header for an interior door is a rewarding DIY project that can significantly enhance your home’s aesthetic appeal. Not only does it provide a functional purpose, but it also adds a touch of personal style to your space. Let’s dive into the step-by-step process of creating a stunning header for your interior door.
Before you begin, gather your materials and tools. You’ll need lumber, screws, a miter saw, a drill, a level, and a tape measure. The type and size of lumber will depend on the size of your door and the desired header style. For this guide, we’ll focus on a simple, classic header design.

Understanding Door Headers
Door headers, also known as header frames or header boxes, serve two primary purposes. Firstly, they provide structural support for the door and the surrounding wall. Secondly, they create a visual frame that accentuates the door and adds architectural interest to the room.
Headers can be simple or ornate, depending on your home’s style and your personal preference. They can be made from various materials, including wood, composite, or even metal. For this guide, we’ll focus on a wooden header, as it’s the most common and versatile option.
Measuring for Your Header
Accurate measurements are crucial for a well-fitting header. Start by measuring the width of your door frame. This measurement will determine the length of your header. Next, measure the height of the door opening. The header should be slightly shorter than this measurement to allow for the thickness of the header and the door itself.
Standard interior door heights are typically 80 inches, but it’s always a good idea to double-check your specific door. Once you have your measurements, you can determine the size of your lumber. For a simple header, you’ll need two pieces of lumber for the top and bottom of the header, and two pieces for the sides.

Choosing the Right Lumber
When selecting lumber for your header, consider the size, species, and finish. The size of the lumber will depend on the size of your door and the desired look of your header. Common sizes for interior door headers range from 1×6 to 1×12.
Choose a wood species that complements your home’s aesthetic and your personal style. Popular choices include pine, oak, and maple. If you plan to stain or paint your header, consider a wood species that will take the finish well. Once you’ve selected your lumber, it’s time to start building.
Building Your Header
Building a header involves several steps, from cutting the lumber to assembling the pieces. With careful measurement and precise cuts, you can create a header that enhances your door and adds value to your home.

Start by cutting the top and bottom pieces of your header to the width of your door frame. These pieces will sit horizontally across the top and bottom of the header. Next, cut the side pieces to the height of your door opening, minus the thickness of the top and bottom pieces. These pieces will sit vertically on either side of the header.
Assembling the Header
With your pieces cut to size, it’s time to assemble your header. Start by laying the bottom piece flat on a stable surface. Attach the side pieces to the bottom piece using screws. Ensure the side pieces are perpendicular to the bottom piece and that the header is square.
Once the side pieces are secure, attach the top piece. This piece should overhang the side pieces slightly to create a finished look. Use a level to ensure the header is straight and square. If necessary, use shims to adjust the header until it’s level.
Installing the Header
With your header assembled, it’s time to install it. Start by holding the header in place above the door opening. Ensure it’s level and centered. Mark the top and bottom of the header on the framing above the door opening.

Remove the header and drill pilot holes at the marks you made. Apply construction adhesive to the top and bottom of the header, then secure it to the framing using screws. Ensure the header is level and plumb as you secure it in place. Once the header is secure, you can fill any screw holes with wood filler and sand the header smooth.
Finishing Your Header
With your header installed, it’s time to finish it. This could involve staining, painting, or simply leaving it natural. If you plan to paint your header, apply a coat of primer first to seal the wood and help your paint adhere better.
When staining, choose a stain color that complements your home’s aesthetic and your personal style. Apply the stain evenly, following the grain of the wood. Allow the stain to penetrate for the recommended time, then wipe off any excess. Let the stain dry completely before applying a sealant to protect the wood.
Finally, step back and admire your handiwork. A well-built header can transform the look of a room, adding warmth, character, and visual interest. Whether you’ve chosen a simple, classic style or an ornate, decorative design, your new header is sure to enhance your home’s aesthetic appeal. Happy building!





















