Ok I just saw this.
Yes they are made of 3/4 starboard and they are easy cut on a table saw.
Then you take a router and cut a grove in the bottom and round the edges.
I then took some thin 1/8 Alum angle (get at any hardware store) and riveted it to the edges of the sliding hatch.
It goes under the new strips and slides in the grove you routered in the bottom.
Works great and looks good also!
I don't see that I have a finished pic?? But here are some for a look.
