a building plan calls for a double 2 by 12 header that is 8’ long

Answer 1

To construct a double 2 by 12 header that is 8' long, you will need two pieces of pressure-treated lumber measuring 2 inches by 12 inches, each 8 feet long.

To build the header:
1. Start by measuring and marking the desired length of 8 feet on both pieces of lumber.
2. Use a circular saw or a miter saw to cut both pieces of lumber to the desired length.
3. Once cut, position the two pieces of lumber side by side, ensuring they are aligned correctly and flush with each other.
4. Apply construction adhesive to the mating surfaces of the lumber to provide additional strength and prevent any movement.
5. To secure the two pieces of lumber together, use 3-inch wood screws or nails through the face of one board into the adjoining board. Space the screws/nails approximately 12 inches apart along the length of the header.
6. Repeat the process for the opposite end of the header, making sure both ends are securely connected.
7. Check the straightness of the header and make any adjustments if necessary.
8. The double 2 by 12 header is now ready to be installed according to the building plan.

It is important to note that building codes and regulations may vary by location, so it is advisable to consult with a local building authority or a licensed professional to ensure compliance with any specific requirements.