Construct Built Up Wood Headers
4. Center the plywood on top of one of the glued faces. Turn the other glued face down, and center it on top of the plywood, sandwiching the plywood between the two glue-covered surfaces.
Instructions
1. Degree the Breadth of the header opening. Calculate unframed header openings by adding 3 1/2 inches to the span of the Rugged opening To admit for a unmarried header jack on Everyone side.
2. Section two pieces of 2-by-12-inch pine, matching the header diameter. End the plywood at the duplicate measurement, and shorten it. Assign the 2-by-12-inch pieces Apartment lodgings, with the Coronet (the top of the slight curve in the wood) facing down.
3. Apartment a thin, continual path of glue in an S-shaped representation along the top side of both 2-by-12-inch pieces. Applying glue is not a requirement, but doing so bonds the three pieces of the built up header together, providing additional support strength.
A header is a big frame running above windows and doors. The locution "built up header" comes from the path such a header is created on the fly at a task location, sandwiching a thin collection of plywood between to pieces of 2-by news. When combined with the header jacks and attached to the framing of the constitution, headers redistribute the weight of the constitution above the opening, sorrounding that opening and along the sides. Without a header, window and door openings would quickly sag, resulting in damage to the constitution, maybe much collapse.
5. Drive nails down through the three pieces of lumber. Nail at an angle, and alternate the direction of the angle to increase the holding pattern of the nails. Use six nails evenly spaced for each 12 inches of header width, inserted in groups of three spaced side-to-side. Flip the header over so that the nailed side is down, and repeat the nailing process for the opposite side of the header.
