jcassara wrote in message
t...
This may sound stupid but I'll take the chance!

How about taping a course grit sand paper to the deck then
placing the boards on the sand paper and moving them in a
sanding fashion. The sandpaper will remove the extra
material and bring the boards shape down to match the deck.
An 1/8" is lot a lot of material to remove. I would then
position the boards on the deck where you want to install
them. Trace the outline with a pencil on the deck and drill
your mounting hole from the top. Have a helper hold the
boards in the outline and predrill the mounting hole into
the boards from below. Seal the mounting edge with silicone
and install your screws. Consider the need for backing
plates on the screws if your passengers are going to use the
boards as hand holds.

John

I used the sandpaper method you describe. I taped the paper to the deck.
Then I started the sanding. Instead of sanding the whole thing, I sanded
enough to mark the "high" spots and then planed those to remove material
faster. I went through a few iterations of that and quickly came to a very
close fit. I still have to attach it when time allows, but that should go
very smoothly. Thanks for the idea.

Brian