Nail the horizontal 2x4 into the vertical 2x4 about 1/4 of the way down from the top of the vertical 2x4, so they are at a 90 degree angle.
The way I've been nailing this scenario is to just nail through the vertical 2x4 at a 0 degree angle, directly into the middle of the end piece of the horizontal 2x4.
I've read though, that the pros like nail at a 45 degree angle, so that the nail doesn't go through the end piece of the horizontal 2x4, but through the top part. Is this correct? I don't like having the end part of the nail stick out.. even if I hammer the sharp point towards the wood.
So are my projects going to not last long if nailing directly into the end piece? They seem to work just fine for the time being, but am wondering what the correct approach is. Thoughts on this?
Obviously I'd have another vertical 2x4 on the other side too, so it stands up.
* Ignore the green and red brush lines, accidentally saved over what I wanted