Kirk - the seats don't have to be glued together unless
you want a solid board seat. to me, the slat style seats
are more "vintage nautical" looking.
also - how long have you had this boat ??
oak or cedar is not original to your boat. the original seats for the
Crestliner and other aluminum boats in the '50s were 3/4" mahogany
marine plywood - not lumber boards. so like many boats of
that era, many things got replaced as they wear out.
transom panels, seats and dashboards are commonly replaced.
here are some photos of my 1959 CRESTLINER . . .
the original bench seats disappeared decades ago as my
two younger brothers and I took turns of possession of it.
my father bought it new in 1959 so it is a family heirloom.
I closed off part of the bow under the deck and filled it with
foam to make it airtight to compensate for the air tanks that
were removed from under the bench seats.
have you visited the site for aluminum boats ? www.tinboats.net
as well as www.retrocrestliner.com
the original bow handle and two stern transom handles
are available if you don't have the originals.
looking forward to following your project.
when it comes to making wood items for a boat,
there are certain regimens that you must follow
in order to achieve satisfactory results.
I have written several articles on how to make wooden
boat seats and transoms that will last for many years.
people that make kitchen cabinets and dining room furniture
should not give advice on projects that will go in an open boat.
I am in the process of making all new seats and floor boards
for my boat out of Bald Cypress that will be clear varnished
and not painted. the whole boat is getting a much needed
renovation. the back bench seat will be 4 slats - not one board.