Ok I have a big project I am moving my mother onto vacant land. I have the building permit. They call for alum or copper so that my first question which is better to use alum is cheaper. I am going to have a four bedroom house with basement about 2300sq ft and a shop for my trucking company largest draw from that will be single phase compressor. Next is comed is trying to talk me into a pole. But we trenched a two inch pipe accross the road already it is 135 ft from the H panl where meter and boxes will go they say to go with a class 320 split into two boxes giving the house 200amp service and shop 200 amp from the H Panel the shop is 300ft away in the middle I want to branch off to be able to put four post out of the ground for plugging diesel trucks in for winter time they run block heaters. I have found that oo wire and ooo wire for 1000feet should be large enough to get 200 220 . I would appreciate any assistance to start place to get supplies and I want to run underground and threw pipe so to cover any future problems.