Stringer wood

[nipper]

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.

[RidgeRunner]

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?

[Skools Out]

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.

[reelapeelin]

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

[phatdaddy]

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.

[Blu_Lunch]

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

[Blu_Lunch]

Originally Posted by RidgeRunner

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?

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.

[Fitz]

Blu Lunch:

Did you pop the top or cut out the deck? I did a search for earlier posts but couldn't find anything. Any photos?


Fitz

[Blu_Lunch]

Originally Posted by Fitz

Blu Lunch:

Did you pop the top or cut out the deck? I did a search for earlier posts but couldn't find anything. Any photos?


Fitz

http://forums.iboats.com/showthread.php?t=404584

[Skools Out]

Originally Posted by Fitz

Blu Lunch:

Did you pop the top or cut out the deck? I did a search for earlier posts but couldn't find anything. Any photos?


Fitz

here's a link to mine which has pics and the floor out


http://www.wellcraftv20.com/communit...ead.php?t=7590