now what's he up to?

If you are discussing this shelf, it is a standard 11.25" pre-finished shelf purchased from Home Depot.
I made a pattern out of cardboard so the shelf follows the contour of the aerodynamic cap and non-perpendicular cabinet wall to the right.

Billy,
     What kind of cap did you put on the outside end og the post? When I did this for my 5th wheel, I added a snap clip on each side of the cap to hold it on. I'm planning to add 2 of these, one for the hose and the other to hold ham radio antennas.

Jim

The post is a 4-3/4" vinyl fence post from lowes. They have end for-um. I think the caps r for 4" and u will need an adaptor for the 4-3/4 caps. Billy

Thanks

Jim