If using wood planks for the box, Bud recommends a 5" to 6" gap. If using pipe he recommends lining it with something like cattle panels because pipe is a little too open and invites animals to try to ...

The perimeter may be made out of cattle panels, corral panels, guardrails, or part of an existing structure such as a barn. Most perimeters will require several posts to support the perimeter. The ...