- Use a 48″x 48″x 1/2″ plywood sheet
- Cut plywood sheet to 30″x 48″
- Make 2 – 10″x 3/4″x 3/4″ wood stops
- Make 4 – 2″x 3/4″x 3/4″ wood stops
- Glue the 3/4″ stops to the plywood as shown. Pre-drill holes if you are using screws to attach the stops.
NOTE – Make sure that the 3/4″ stops in the center are perpendicular to each other and to the edge to make square cuts on your trim coil.