Adding the Chair Back

  1. Cut two back supports (H) from 2x4 treated lumber, each 14-1/2 inches long. Then set your saw blade to cut 15 degrees off vertical, and bevel one end of each support to allow the assembled back to lean slightly backwards. (If you're unsure about how to make a bevel cut, refer to the "Tips and Techniques" chapter.)
  2. Cut three back slats (I) from 1x6 treated lumber, each 18-1/2 inches long.
  3. Assemble the chair back by attaching the three back slats (I) to the two back supports (H). The ends of the back slats (I) should be flush with the faces of the two back supports (H). As shown in Figure 4, the slats should be flush at the beveled end and extend approximately 1-1/2 inches over the other end of the back support (H). Again, draw a line to guide your screw placement, and use two 1-1/4-inch-long screws on each end of each slat.
  4. Fit the assembled back between the chair sides so that the beveled ends of the back supports (H) rest on the rear chair slat (G). Attach the back to the chair by screwing through the chair sides into the back support (H). Use two or three 4-1/2-inch-long screws through each side.
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