First, I bought a box of scrap hardwoods from a local cabinet shop. I spent about $60 and still have enough wood to make several similar pieces. Then a trip to Lowes where they cut the plywood and trim to exact size.
Once I had all of my supplies together I spent awhile cutting and sanding then arranging the strips of hardwood. With a design in mind we assembled the frame by attaching the trim pieces to the back of the plywood. We predrilled holes and using the wood scews and glue built the framework. The screws were inserted from the front to hide under the design (strips of wood).