I can see the benefits over slotted concrete posts, especially the installation, but the main reason people specify concrete is because they won't rot - although they do suffer frost damage.
Spose its a mid point between square timber & slotted concrete.
Just how good is pressure treated timber when buried in the ground?
They claim they last as long as concrete - and talking to the local guy who installer ours he agreed. If you are in the folkestone area at any point they have an area at their factory up the road with all of their products on display - including some that are getting seriously old now (they've been there a fair while now!).
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has details of the 25 year guarantee they give:
"We are so confident in our Jakcure process that we back it with a 25 year guarantee against all wood-boring pests and all forms of wet and dry rot"
Remind me in 24 years time and I'll let you know how if that's bollocks :-)
Fit concrete ones and clad them in timber - leaving an air gap between the timber and the concrete. Fix them with screws to battens attached to the fence panels. Suitable wood can be ripped with a circular saw from 150mm tanalised gravel board, fit a post cap, slap on some exterior wood stain and they look just like chunky wood posts, except they don't rot.
8ft long concrete posts are relatively easy to fit, the weight is only a problem if you allow it to become one!
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