Stringer wood

[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

[RidgeRunner]

They could have used pine, it was not a hardwood that is certain. My floor was plywood squares layed in place while the liner was probably still in the mold. The forewardmost plywood bulkhead in my center console was only tabbed in place. They sprayed the bare wood with gelcoat to make it look better to the casual observer. The reason Marine Plywood is recommended by Skool and others is because it is supposed to have less voids in the interior plys, in theory a void is a starting point for osmosis and the beginning of rot. If Wellcraft had sealed their wood better it would probably not need so much work today. I like the idea of epoxy, I just have started to experiment with the stuff. Best of luck.

BTW- I am no expert, just re-built a boat or two that are still around. The plywood is stuff I stock here at the lumber yard for anyone that is local and would like some. It isn't $45/sheet though Skool. More like $60 for 3/4 Marine Tech PT KDAT one side sanded. It can be glassed without a problem even though it is PRESSURE TREATED, due to the fact that it was dried in a kiln after.