I am in the process of building a picket fence. I have set my posts and I am moving onto the next part, attaching the stringers. I would like to cut a grove across(Left to right or horizontal)into the 4 x 4 posts that I have set, to set the 2x4 stringer into. What is the easiest and safest way to do this? Using a router or using a Circular saw w/dado or regular blad & chisel? Or what would be recommended? Or forget the groove and get some brackets. Just curious to what other people have done in the past. This is for a small fence only 3ft tall to keep small dogs in a yard.
Thank you for all your help.
Darren