I created this box for my Acme 5/8 straight. The box is made of walnut with a mahogany insert. I used 1/4 inch plywood for the top and bottom. It is finished with clear polycrylic. The first two pictures are after the box is assembled and before finishing. Next, I finished the box with polycrylic. Then, I lined the inside with red felt. Finally, I installed the hardware.