Hi everyone! This is a very basic question, but what do you use for cross ties and where do you get them? Also, for mini's, how many feet off the ground do you put them? At the barns I use to board at with big horses, they already had the cross ties there. Now that I have my own barn in the back yars, I can't seem to find any. I've been to Tractor Supply, and a few local tack shops, even some feed stores and to my surprise, no one seems to have them. Thanks for your help!