I'm looking for a piece approximately 1" thick X 3" tall X 20" Long. I was hoping to get 7 oar positions out of each block. Called tap plastics and they don't carry anything above 1/2" thick, I'd have to order a full sheet.
Sent you a PM with these pics but will put it here in case anyone else is wondering about these. Koffler built these for my RMTB a few years back but there wasn't enough seat adjustment to bother with it. These are 9" x 1.75" x 2.25"
. Holes are 3 inches apart. Koffler could fab your 20" blocks I'm sure.
I did a bit of research while out and about today, and did some talking to some fabricators, I found that I need to run two separate blocks with the design of my boat. Its an older 16x54 Willie with the Uni-Rail. Cutting out to much in between the Uni-Rail could significantly weaken the boats rail and create unwanted flex in the boat.