Measure the height and width of the window for the louvered shutters. For this project, the window measures 32 inches wide and 56 inches high.
Cut six pieces of 14-by-2-by-2 inch cedar for the top, bottom and crossbar pieces of the shutters and four pieces of 56-by-2-by-2 inch cedar for the sidepieces with a circular saw. Cut 100 15-by-1-by-1/2 inch cedar pieces for the cross-slats for the shutters. Sand the wood and edges with medium-grit sandpaper.
Use a drill to make two 1/2-by-1/2 inch holes in the side of each of the sidepieces. Place the holes 1 inch from either end of the sidepiece. Place a third hole in the same side of each sidepiece as the first two. Position the third hole 28 inches from either end of the sidepieces. Place a 1/2-by-1/2 inch hole in both ends of the two top, bottom and crossbar pieces. Center the holes in the 2-by-2 inch ends.
Set a miter saw at a 60-degree-angle. Cut 50 1-inch wide and 1/2-inch deep holes at a 60-degree angle. Place the mitered cuts in the same side of the pieces that you drilled the 1/2-inch holes. Space the cuts every 1 inch but skip the first and last 2 inches of the piece and 1 inch on either side of the middle hole.
Fill the holes in two of the sidepieces with wood glue. Also fill the 60-degree angle cuts with wood glue. Insert a 1-by-1/2 inch dowel rod into each of the 1/2-inch holes and one cross-slat into each of the 60-degree angle cuts.
Add wood glue into the holes on the end of a crossbar, top and bottom piece and insert them into the dowel rods on the sidepieces.
Fill the holes and 60-degree angle cuts with wood glue on the two remaining sidepieces. Press the two sidepieces onto the other top, bottom, crossbar and cross-slats. Wait for the glue to dry overnight