I live surrounded by Mass and I am putting up a obstruction 3ft and 6ft dignified. How open should I verbs the holes for the posts? How deep should the holes be for the 3 ft balustrade...

How deep should the holes be for the 3 ft balustrade and how deep for the 6 ft blockade?
The hanger-on to my centeral nouns component will...
Answers:    unless you are driving close to the fence 3 ft. should be satisfactory...go 4 ft. if you are driving alongside it...
How do I split/add a box for my...
Yep 1 to 2 foot should be okay. Depending on weight of the barrier material, how frequent trees, and how much wind you own and how much wind resistance the balustrade material deflect (or picks up). IE the solid PVC panel fencing has closely of wind resistance and posts are 6 to 8 foot apart. Cyclone fence (AKA secure link) has Little crisscross resistance and posts can often be 10 foot or further apart Also The more trees the more wind is deflect.
Does the aficionado want to run on my...