Attaching one beam (a length of lumber) to another is done with the use of a joist hanger. These metal hangers come in various sizes and widths to fit around different-sized pieces of lumber, and have nail holes for nails to enter into both sections of wood. Once installed, the join between the two pieces of wood is very strong and the hanger will help keep both pieces of wood straight.
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Things you need
- Tape measure
- 16d galvanised 3 1/2-inch nail
- Joist hanger
- Joist nails
Measure and mark one beam in the location where the second beam will be attached: Position the end of the second beam at the correct angle (usually 90-degrees) to the side of the first beam, making sure that the tops of each beam are flush with each other. Run a pencil against both sides of the second beam's end so that it marks along the side of the first beam. This will produce two lines on the side of the first beam, that are parallel with each other).
Toenail the top of the second beam to the first beam. That is, hammer a galvanised 16d 3 1/2-inch nail at a 45-degree angle through the top edge of the second beam near its end and into the side of the first beam. This will hold the two beams together and free both your hands to install the hanger.
Slip the joist hanger around the second beam from underneath, pushing it up into position and resting it against both beams where they join together. Make sure there are no gaps between the hanger and beams, either on the sides or where the hanger wraps around the bottom of the second beam.
Knock the speed prongs near the top of the hanger into the first beam. This will hold the hanger in place. Hammer joist nails through the holes in the hanger into the first beam. Then hammer joist nails through the holes in the hanger into the second beam.
Tips and warnings
- Always use the correctly sized joist hanger and joist nails for the size of lumber you are working with.
- The reason for marking the location of where the second beam meets the first is because of possible slipping when the two beams are toenailed together. The beams can then be easily placed in position against each other at the marks.
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