: I just read this bit of info on a web site.

: PAA stamped marine plywood has consistent structural properties. For design
: purposes marine plywood can be considered to have a stress grade of F14.
: Marine plywood generally has thinner face veneers over thicker underlying
: cross veneers to give it similar strength and stiffness properties in both
: face directions

: What do you think about this?. It does seem right that if you have 3 plys
: that the single one will have to be thicker than the other 2 so, as stated
: above, the plywood is as strong and bends the same in both directions.
: The site I found this on is below.

Another thing to think of with thin face veneers; you'll be sanding your scarf joints (if you do scarf joints). Sand away too much of the veneer and your joint may colapse as soon as you try to move the panels. This happened to one of my joints not so long ago, and I didn't actually sand all the way through the veneer. The fracture occured next to the joint, after I had cut out the panel. Bugger....

The ply with equal veneer thickness is the best option on several levels, tho cost might be a little more, Check your yellow pages and phone around. Don't be afraid to call the places you've never heard of and who have only one branch. Sometimes these guys are cheaper than bbc/miter10 and other places with big expensive ads. Hope this helps.

BTW, Where in Oz are you?

Paul.