What methods can be used to attach fence rails to posts?

There are a number of different ways to join the rails to the posts. Top rails can be mitered, butted, or notched and bolted, while bottom rails can be toe nailed, fastened with a block or metal brace, or inset into the post by cutting a dado or a notch. Non-corrosive metal hardware may be used. Toe-nailing provides the weakest connection.