I have some old featheredge fencing that is 8ft tall, that has been nailed to 2 off Aris rails each of approx 110mm x 110mm. These have tenoned into 150mm x 150mm posts.
These have now fell down, posts rotted in the concrete and aris tenons rotted as well.
However the posts are on 2.7m (9ft) centres, and I nee to keep them on the same centres
As I do not want to use such big posts and arris rails. What can I get away with. And how deep must the posts go.
Any advice is sought. TIA