I need to have a 6' tall wooden fence extended. I will use 100x100 pressure treated wooden posts inserted into the ground and fixed with Postcrete or similar. The presence of tree roots makes the use of spikes impossible.
Many fencing suppliers and timber yards sell pressure treated posts that they say are suitable for use below ground. But they are not Use Class 4 certificated, which i understand is recommended for such use.
Is there a significant difference? Will UC4 posts last much longer? Are they worth the extra cost?
Thanks for any advice.
Many fencing suppliers and timber yards sell pressure treated posts that they say are suitable for use below ground. But they are not Use Class 4 certificated, which i understand is recommended for such use.
Is there a significant difference? Will UC4 posts last much longer? Are they worth the extra cost?
Thanks for any advice.
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