Framing A Garage Door Header

A garage door header is a critical structural component that supports the weight of the door and any attached cladding. It is important to frame the header correctly to ensure the door operates smoothly and safely.

The header is typically framed using two parallel beams, called a double header or a header truss, spanning the width of the opening. The beams are typically spaced 16 inches on center and are supported by vertical posts or studs.

The size of the header will depend on the width of the opening and the weight of the door. For a standard one-car garage door, a double header made of two 2x10s will typically be sufficient. For a heavier door or a wider opening, a header truss will be necessary.

To frame a garage door header, follow these steps:

Determine the width of the opening and the height of the header. The header should be at least 12 inches tall and should extend at least 6 inches beyond the opening on each side.
Cut the beams to the desired length. The beams should be long enough to span the width of the opening plus the required overhang.
Attach the beams to the vertical posts or studs using nails or screws. The nails should be long enough to penetrate both beams and the studs.
Check the header for level and plumb using a level and a plumb bob. Adjust the beams as necessary to ensure that they are level and plumb.
Install any necessary bracing to prevent the header from sagging. The bracing can be made of plywood or metal.

Once the header is framed, it is important to cover it with a weather-resistant material, such as roofing felt or tar paper. This will help to protect the header from the elements and prevent it from rotting.

Framing a garage door header is a relatively simple process, but it is important to follow the steps carefully to ensure that the header is strong and durable. By following these steps, you can ensure that your garage door will operate smoothly and safely for many years to come.