Here are the other photos related to my post.

You can call it base cap, bed moulding, panel moulding. Both of the ones you have shown are readily available at least here in the se

Thank you. Any leads on sources for this type of mounding other than Versatex? Any thoughts on whether either of the moundings shown in the attached Versatex illustrations would look good for the intended use?

Go to a real lumber yard in your area and find out who they buy their mouldings from. That will be the first place you look. My local lumberyard uses Garden State Millworks, if I cross the border to South Carolina (which I can see from downtown) I get a whole other selection.

Thank you!