Our level 2 system. 

Medium commercial grade.

7' high with barb wire. (barb wire not present here).

2 3/8" Terminal posts 40 weight.

 2" Line posts 40 weight.

1 5/8" top rail 20 weight.

2 3/8"x40 weight Gate posts to 6' wide opening.

3" x 40 weight gate posts over 6' wide opening.

9 gauge chain link.