Hoop Pine Marine Plywood AS2272

This is surely the "Rolls Royce" of marine plys. The Australian and New Zealand standard AS2272 is by far the most rigorous. It does cost a bit more, but the plywood is sooooo much better. The first thing to realize is that any standard is legally enforceable only within its country of origin. Thus as a quality guarantee, AS/NZS2272 is only enforceable in Australia and New Zealand.

AS2272 only permits timbers to be selected from a particular list of species, and in particular specifies that the plywood must comply with a minimum stress grading of F14, which means that the hoop pine marine plywood must meet a minimum value for its stiffness and breaking strength.

The Austral brand which we usually sell actually has a stress grading of F17. No other marine plywood in the world is made to comply with any such minimum strength value. Gaps are not permitted. AS/NZS2272 specifies not more than two filled grain splits per sheet up to 3 mm wide by 450 mm long. Core veneers are permitted to have sound knots, as well as edge gaps up to the veneer thickness with a maximum length of 25 mm. Overlaps in core veneers are not permitted. The face veneers are AA which means they are suitable for clear finishing.

The adhesive used in all plywood manufacture is waterproof phenolic type WBP. Regular production sampling and testing is required for waterproof and adhesion qualities by both long term immersion and by 72 hour boiling. There should be no adhesion failures.
Here is some information about glue bond quality and how to check it.

We can ship plywood to anywhere in Australia, how-ever we STRONGLY RECOMMEND that you also buy 2 of the 3mm MDF Sheets to protect your plywood from damage whilst in transit. If your order weighs more than 30kg, please give some thought as to how it is going to be unloaded from the delivery truck.