Still in the planning stages for the new & improved cemetery fence, but I wanted to get y'all's input. I'll be making the ubiquitous PVC "wrought iron" fencing, but was curious. How tall should I make it? I don't want it to be a potential tripping hazard if too short and someone decides to climb over; nor do I want it too tall that it intimidates some of the smaller ToTs. Also, I'm cheap and want to get the most out of my stick of PVC as possible.