Stringer wood
 

Today I went to West Marine and bought all the materials from my V-17 to replace the stringers and deck I am going to start laying glass next weekend. What type of wood should I use for the stringers, I need to replace the entire center stringer and about 5 feet of the side stringers. The old stringers look like pine kid you not.

All the gurus here and nobody can give any advise?

I'm not one of those experts by no means...

I would pick a wood with small and tight grain like ipe/mahogany.

Not an expert by any means either, but when I did some stringer and floor work on my old 1972 Speedliner 17' boat I used 3/4" marine plywood. It was hard to find in my area of the country, and expensive.

I think Wellcraft used plywood for the stringers. I would use. 3/4" Marine Tech PT but Kiln Dried After Treatment or even untreated. You can use 3/4" BC FIR as a cheaper alternative. I would stay away from the tropical hardwoods like ipe and mahogony unless you are building a very nice wood deck. They are strong but cost prohibitive and I believe a little too stiff for a backbone in a fiberglass boat. Besides if it has a center stringer, you will need a piece that is at least 12" wide. That may be a tall order ($$$) in the hardwoods. Then there are composites. More money. If you need longer than an 8' run you make a nice scarf joint in the plywood and reinforce with glass.
What glass did you buy? and what is your layup schedule?

3/4 plywood and on the top add 2x2 to one side of your stringers to add a place to screw down your new floor.

Can you pour up new stringer cores w/Arjay?...

reel, they make a foam you can pour in it, cut the top off at the level you want and lay a glass strip over to seal. just get the rotten wod out and use the remaining glass as a mold.

Thanks for the reply's I have all the rotten wood out and sanded all the glass. When we cut old wood out I left about 2 inches of each stringer glass so the new ones would sit and stand there while we glass it in. In plan on coating each new piece in West 105 at least 2 coats and would it advisable to put some adhesive on the bottom of the new wood or not? The factory build had just a single layer of 24 oz woven to hold the stringer and in spots the was none at all for 2 feet or so just bare wood. This weekend found the transom is shot we all ready completely got the old wet wood out and I ordered 12 gallons of Seacast today for it

I bought West Systems 105 and 206 the stringer was just plain lumber I swear it is pine it was really cheap wood the deck was 4 by 4 plywood squares.