where to buy marine grade plywood to rebuild a transom?

In GA you simply need to find a lumberyard and get marine grade plywood. I'd suggest against Fir, as it's a pain in the butt to sand (the grain is harder than the clear part) and tends to splinter. The very best of the best is Okume or Meranti plywood, made from an African wood, but any void-free marine grade ply is fine.

I've redone a few boats- the thing is, the plywood is just the core- the strength comes from the fiberglass composite sandwich that you make...that being said, if you don't want to redo your work in 3 years, you need marine grade ply. Personally, I like to use 2 sheets of 3/4 ply glued and screwed together, fitted roughly in place, then glass the bejaysus out of it with triaxial cloth and woven roven cloth.

Marine Plywood For Sale

Marine Plywood Home Depot

That is an undertaking. Transom is one of the Bulkheads of the boat, on that boat is THE bulkhead.

Marine Grade Ply is going to cost, and cost, so measure twice, measure again cut once, measure again.

Make a template of the existing one with Panelling or some thin ply, even Thermoply works for that. Thermo-ply is like cardboard, wich can also be used to make a template. I suggest that you make two templates and store one in a very dry place, preferably inside.

Go to the local Lumber yard, the old one, not the Franchised one. Ask them what they have and can you purchase it buy certain measurements, that way they cut it for you and then you assemble and apply it.

Unless that vessel has some sentimental value, it really is not worth the 50hours and the $3k that it will most likely cost to replace the Transom.

Yes, I have done that before, on a 64 Chris Craft, all wood, it worked nice.

Seems like you could find one being given away or parted out on line or at some boat place and that would make it alot less investment and trouble.

Think about it, you are replacing the Motor Mount and the section where all the stress is compounded, one fail and is a sink.

I just looked on Craigslist and found a 1980s Glastron for $890, that is probably less than the materials and time and tools to replace that one.

CapitolOne sells Marine Grade, I have never dealt with them or used them, seems like Georgia Lumber also sells that, I have used them in the past.

Get that 1980s one for $850, use yours as a parts boat and enjoy the summer.

If you have a Lowe's or Home Depot, they should have it or at least use ACX or ABX grade plywood. Many lumber yards will also have it in stock. It's not cheap, but you really need to use it.

I've never had to replace a transom so I can't help you there. But if you Google it you'll find it. Or try Bing.com

here is an excellent site with how to instructions on rebuilding your transon they recommend using clear penatrating epoxy sealer (CPES)

1970 cobra transom repair

http://www.rotdoctor.com/projects/Cobra.html

http://www.rotdoctor.com/glass/GLrotrepair.html

instructions from their web site:

Let's take a look at a standard repair:

1) Remove transom top, and (as many as possible) fixtures attached to the transom. Tape the holes shut.

2) Dig out bad wood with a hook-like tool (i.e. a caulker's reefing iron or a sharpened and bent file.

3) Allow interior to dry, or blow-dry. Drill a small water outlet hole at the bottom of the transom. (You can fill it later with Epoxy Filler.) Clean out or vacuum out loose debris.

4) Treat the gutted area and surrounding wood with CPES™. Just pour or spray on the CPES™. Keep doing that until you see CPES™ starting to dribble out the hole you drilled at the bottom of the transom. You can capture it and re-apply if you wish.

IMPORTANT: to prevent recurring rot, all wood in the surrounding area (even if it is not rotted) needs to be treated with CPES™ as well. The rot fungi are there. You can use a spray or a swab but you must get the CPES™ on the wood.

5) Allow about a week for the CPES™ carrier solvents to evaporate away and the epoxy to cure. After this, close the hole you drilled in the bottom of the transom. Our Fill-It™ epoxy filler will do this quite well.

6) Measure, cut, glue (if required), and CPES™ treat the replacement wood. This can approximate the size, because you're going to fill around it with a resin-mix.

7) Drop the wood into position and fill around with a flowable mix of Layup & Laminating Resin™ and sawdust. The sawdust can be quite coarse. Make sure that the mix flows well before pouring in place.

8) Allow 24 hours for preliminary cure.

9) Close off the top with either a putty made from the sawdust and L&L Resin™ or with our Fill-It™ epoxy filler.

10) Replace the top on the transom. Re-drill motor mount holes. Bed everything back in place. Remember what we said above about bedding compounds: Don't use silicone and make the process a two-step procedure.

sources for marine plywood in GA

http://www.glen-l.com/resources/lumber-suppliers.h...

http://www.marine-plywood.us/Links.htm

http://www.google.com/search?sourceid=navclient&ie...

hope this helps

Well it depends where you are but I buy my Plywood From these guys.

JW Anant Agarwal IPC GROUP +65 9488 3470 (Mobile) Skype: anant009 Email: aagarwal@icdgroup.com

aagarwalicdgroup@gmail.com WEBSITE: www.icdgroup.com

feel free to contact them.

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