starting my 1972 20' seacfrat

[Bushwacker]

Originally Posted by Sceptre20

I see where that is a 1972 and it has the box stringers,when did Seacraft go from the 4 smaller stringers to the 2 box stringers? I thought it was 1973. And does one type have an advantage over the other.I have a 74' and a 72 and am just curious.

That's what I thought too - have never seen a '72 with the box stringers. Does the boat have a HIN engraved in transom at top outer area on stbd side? If so, it's a '73 because they weren't required in 72. Of course if the transom was previously replaced from outside, they might have removed the HIN. Boat has obviously been apart before because those longitudinal ribs on hull sides were not OEM.

I personally think the 4 smaller stringers would provide more uniform stiffness to the bottom of the hull. They would also create a stiffer "I-beam" when deck is bonded to top of stringers because you'd end up with twice as many vertical ribs in the beam. The box stringers probably require less glass and resin, so I'm pretty sure they were a cost savings. However the basic layup in all the Moesly and Potter boats is so stout compared to the average boat that either stringer configuration is way more than adequate!