Posted: 08/09/2013 at 19:09
Dove, Yes it's definitely teak and I agree that I would have expected the seat to rot before the back rail. The seat is about 20 years old but had been 'buried' for a couple of years. Prior to that there was no sign of rot at all.
I can only guess that water must have penetrated the joint between the back rail and the uprights, which is where it has rotted away.
I do think your point about its natural growing conditions is a bit of a red herring. Even pine doesn't rot whilst its growing, but it certainly does once it's dead
I think what we can agree on is that under normal conditions, teak requires a lot less attention than virtually any other timber furniture.