Originally Posted by MartinClan
I am now on the hunt for some decent plywood to make the doors proper from. Not so easy as one might think nowadays...
Indeed - I bought some ply from B&Q - meant to be boil and waterproof exterior ply. I treated it to a couple of coats of Sadolin and put it on my trailer. Within 2 days (no rain, just dew fall) it was bent like a banana! I returned it, and was immediately told "we cut it, so you can't return it". I requested to speak to the Manager, and he immediately granted a refund. I think you'll need a specialist supplier, or How about making the doors using GRP?