Mary Goodale wrote:

> Looking for best ways to mount pedestal seats that cannot be through
> bolted.
> Thank you

 They sell a base plate kit that requires space below the mounting
location. You would use a hole saw and cut a three inch hole in the
middle of the pedestal location. Then insert metal plates below and a
base plate above the deck. The pedestal is then attached to that. Don't
forget to reinsert the cutout with 5200 sealer or epoxy. Any good parts
shop should be able to get the kit for you.