Fixing fence rails - To the concrete posts

[mrcw]

What is the best way to attach the rails to the concrete posts, the bolt through type, were it joins, ie with a woodern post, you could half it and nail it, what do you do with concrete, I saw someone do 45 cut about 100 mill from the post. is that the best way

Regards

[Tony McC]

Timber rails are usually bolted to concrete posts, and then scarf joints (the 45º mitres you mentioned) are used to link rail-to-rail.