Depends on terrain, cover, and prevailing winds vs. the route deer usually travel.

Anywhere from 18-inches to 20-feet is what I set mine at. I use 20-feet only when cover is thin. Otherwise, 16-feet is the average in the territory I presently hunt. Last season I busted a buck off an 18" high stand.

I don' t like high stands because the shot angle reduces the " kill zone" considerably.