I have 2 ideas for Fences.
It would look nicer than having the random bits of wood sticking out from fences if we had corner fences we could craft aswell as " + " shapes ones too.
instead of the clicking, moving mouse, clicking, etc you could just drag where you want fences to go in a line. That would be much easier.
That’s why I use this workaround.
It won’t help with dragging to place fence part, but for fixed design, I just place the building template and ordered it built, and hearthlings will fetch and install the fence and gate pieces (after the slab parts are built).
i suggest you the endpieces mod 
I never really thought of making templates, good idea. But still, only mods will let you use the corners and crossroads.
Yeah, I want there to be better fences in the actual game.
Theres another post similar to this one (“Treat fences like walls”), but I say it would be better to have fences their very own category.