Plastic fencing

[RJH]

Wood, at current estimates will outlast plastic, at least for windows - hardwood 80+ years. If properly maintained, of course.

[charles]

This house still has some original windows, build date 1911. They are actually a hard "softwood", properly seasoned before use.

[Tim Watts]

That's why I went with slotted concrete posts and concrete gravel boards, with wooden panels slotted in.

Doesn't look to bad and easy to maintain.

[stuart noble]

I bet the surviving windows don't face S/SW :-) Same timber still available from any half decent merchant, at a price of course

[charles]

absolutely right, but the ones on the S/SW windows lasted until 10 years ago.

[ARW]

The same applies to oak