Cut two 10-inch pieces of 1-by-3-inch furring strip.
Set a table saw to a depth of 1/4 inch and score a 10-inch groove down the center of one furring strip.
Paint both furring strips black.
Set the furring strips on top of each other with the groove on the bottom.
Connect one end of the furring strips with a small hinge, allowing the strips to pivot open and slap together again.
Paint white, diagonal stripes across the front of the furring strip assembly.
Cut a 10-by-8 inch piece of white, 1/4-inch plastic.
Glue the plastic into the groove that you cut in the furring strip. Use epoxy for the best possible bond.
Draw a grid onto the clap board with a black permanent marker, following the picture as a guide. Use a ruler to ensure that the lines are straight and even.
Fill the grid's cells with the following data: Production, Scene, Take, Roll, Date, Prod. Co. (for Production Coordinator), Director, Cameraman and Sound.
Apply a strip of self-adhesive Velcro onto the back of the clapboard, and the matching piece onto a black dry-erase marker. The marker can be stored on the back of the board when not in use.
Fill in the data in the cells with the dry-erase marker.