I have been doing alot of reading and cant seem to find any consistency.
I am building a SUP 12’8" 30" wide 6" thick out of 1 lbs eps. I am trying to figure out if I should go through the trouble of putting a stringer in it. I was thinking of doing 3 6oz on deck and 2 6oz on bottom. Epoxy
flat water displacement board. Any advice please. Thanks
Yes, the 1lb needs all the structural help you can give it. Consider adding side panels of 6 oz. or CF if you have slab sides.
gtonnis, You could use “Surface Stringers”. They are strips of wood approximately 1/4" x 1-1/2" that you install in the bottom and deck in a routered channel. Use nose and tail blocks to complete the look. They work well, look really neat and are a lot easier to do if your blank isn’t already split. I could put up some pics later and theres a few tricks to the install.
regards Dave
STringer it…
If you havent shaped anything yet, your 2 outside cuts are coing to be perfect… Cut the blank in half with anything you have. and use the 2 outside edges as what you glue the stringer to.
Adding a stringer is the easiest way to control flex.
Stringerless is for performance designs, where you are engineering your laminate schedule for a specific flex pattern.
If you are only going in flat water, and you make the blank thick enough, no real stresses are placed on the board. So just glass it and skip the stringer. But if you ever get it in the ocean, and get caught by a wave, your next thread will be on putting two halves of a SUP together.
Just wait for the fun responses you’ll get from that thread!