Paul Mc Cann wrote:

While I would definitely agree re pressure treated posts and for any
part that will be in contact with the ground, we have some fencing
where the intermediaries, which are well clear of ground level, are
just softwood (re-claimed, I'm a tight b*****d), have survived 15
years so far with nothing more than a soaking of creosote annually, if
I remember.

Round here rough sawn pressure treated is extremely cheap -
pennies more than non-treated. You put it up and for get about
it for 25 years or so.

I reckon creosoting all our fences/gates/other outdoor timber
would take the best part of a week. I'm really not prepared to
spend one week per year doing that (that's 2% of the year!!).

--
Grunff