"Mary Fisher" wrote in message
. net...

"George.com" wrote in message
...


... There is in earth treated
timber, the next grade up is for house piles and finally marine grade
that
goes in to wharfs.

That's very interesting, does one get it from the normal timber supplier?
I'm fed up of rotting boards. Spouse wants to use concrete slabs :-(

Mary

depends what rating they use in the UK. Here in NZ the low durability
timbers (Radiata Pine, Oregon Pine/Douglas Fir etc) are pressure treated
(tanalised) with CCA. H3 is decking/fence grade, H4 in ground such as timber
posts and H5 for piles. You will not need marine grade unless building over
water. Easily obtained here from any decent timber merchant.

rob