Well originally this topic was going to be about Marine Plywood or
plywood for marine uses. Insipired by the first listed URL about
plywood myths and the quasi=tests and images. But there are some
other related boat building links too. So enjoy. Mic


http://www.brent-rehmel.com/myths.htm
Plywood voids rot theory - lots of images
"One example is the idea that ABX, ACX or BCX plywood will rot away
because it has internal voids."
"I have variously been told that moisture inside the wood will
condense like dew inside a void and cause rot. Other people insist
that if the wood gets wet that this water will somehow collect in
voids and cause rot. None of these descriptions of how it is supposed
to happen has ever made much sense."

DECIDE FOR YOURSELF....

http://www.glen-l.com/weblettr/weble...webltr11b.html
"Myths and Mis-information
Marine plywood is more rot resistant than regular exterior plywood. -
False. The difference is primarily in the quality of the inner
veneers."

http://www.oneoceankayaks.com/stitch...m/plytype1.htm
1. Plywood types for Stitch and Glue Kayak building

http://www.oneoceankayaks.com/Shop.htm#plydex
INDEX of Stitch & Glue building pages

1. About Plywood - what to look for in plywood
2. Scarfing - preparation of plywood panels for joining
3. Joining scarfed plywood sheets
3a. Butt-joining plywood - limited alternative to scarfing
3b. ScarfLOCK - joining of plates in S&G kits
4. Transfer of plans to plywood
5. Cutting kayak plates from plywood sheets
6. Stations - mounting and alignment of 'mold'
7. Strongback - setting up solid building foundation
8. Wiring hull plates # 1 and stations into the mold
9. Wiring side plates # 2
10. Filleting and filling pinholes - overview of technique for deck
and hull
11. Deck plates - "stitching" deck onto the kayak
12. Fiberglassing outside deck
13. Sanding and trim of glass on deck
14. Coaming rim installation
15. Hull stem band and tips
16. Glassing outside hull
17. Glassing inside hull
18. Glassing inside deck
19. Bonding hull and deck together
20. Painting decorative stripe

Yes the above is for Kayaks but many of the techniques and materials
are the same.

http://www.glen-l.com/wood-plywood/wp-index.html

# Marine Grade Plywood
A description of the Marine Plywood standard
# Preservative-Treated Plywood for Boat Manufacturing Applications -
Best Practice Guide
# Bonding Fiberglass to Plywood
Test: Influence of treatment and moisture content on fiberglass bond
to plywood.

AND

# A table saw jig
For truing edges of lumber or cutting bevels on transoms or other
members.
# BS 1088 marine plywood
Most often called "okoume" after the most common veneer, but other
veneers can be used.
# Marine Tech
A material that does not qualify as a "marine" plywood under APBA
specifications, but that is manufactured for marine use.
# Joining plywood to make longer sheets
Decription of making a scarf and butt joint.

IN PARTICULAR
http://www.glen-l.com/wood-plywood/bb-chap5.html
Buying Lumber
Selecting Lumber
Lumber Defects
Rot & Worm Protection
Sapwoods & Heartwoods
Softwoods & Hardwoods
Lumber Species for Boat Building
Hardwoods
Softwoods
Wood Use and Characteristics Chart

http://www.worldpanel.com/Marineplywoods.htm
MARINE PLYWOOD & DECKING PRODUCTS
Here is our quick comparison chart on our structural panels, used for
areas of Marine boat-building & carpentry.
http://www.worldpanel.com/Marineplywoodsspecialty.htm

http://www.boat-links.com/plyfaq.html
The Plywood for Boatbuilding FAQ
version 1.1 11/9/96
Edited by Craig O'Donnell

http://www.practical-sailor.com/news...woodmarine.pdf

http://www.apawood.org/level_b.cfm?c...wj_0501_plycen
How an Association Promotion Idea, an Imaginative Marine Designer, and
an Enthusiastic Boat Builder Launched a Plywood Sailboat Phenomenon


Not really about plywood but interesting
http://www.personal.kent.edu/~mgarmon/primer.html
Copyright (C) 1996, 1998 by Doug Garmon
Doug's Boatbuilding Primer emphasizes "traditional" boatbuilding
methods rather than stitch-and-tape
A fair bit of terminology defined in a simple and understandable
manner.

http://www.dixdesign.com/radply.htm
DUDLEY DIX YACHT DESIGN
RADIUS CHINE PLYWOOD BOAT BUILDING

http://www.common-sense-boats.com/boat_building.htm

http://www.kastenmarine.com/beam_vs_ballast.htm
An Overview of a Few Common Misconceptions Regarding
Beam, Ballast & Displacement
As They Relate to Seakeeping

http://powerboat.about.com/gi/dynami...e%2FSteam.html
"So you want to bend some wood huh? I have had that urge a few times -
gave into that urge a few times as well. Steam bending is not all that
difficult, it just requires patience. What I will describe will
constitute a simple method that can be adapted to various sizes of
wood and steam sources."

http://powerboat.about.com/gi/dynami...FScarfing.html
Brian Dixon's Plywood Scarf Clamping Jig

http://www.practical-sailor.com/news...908plywood.pdf
Understanding Plywood Grades and Classifications

http://home.clara.net/gmatkin/britisles.htm
Boat building projects, designers and boat building suppliers based in
the British Isles

http://www.unclejohns.com/boat/faqnew/default.htm
The Classic Cajun Pirogue
If you don't find the answer to your question, send us an .
This page is continuously updated to be as helpful as possible.

http://www.hobby-boatbuilding-index.de/htm/hull.htm

http://www.byyb.org/forums/
Back Yard Yacht Builders Association Forums

http://www.boatbuilding-links.de/Jim...od-sheets.html
JOINING PLYWOOD SHEETS - © Jim Michalak

http://plywood.e-boat.net/index.php
"Why marine plywood?
Small boats:
While small stitch and glue boats can be successfully build with
inexpensive exterior plywood, there are many advantages to the use of
quality marine plywood."