How deep should I bury a 4x4 steel post?
You will want to bury about 1/4th of the pole under ground (So dig a 6 foot hole). At the bottom of the hole, pour 1 foot of gravel, and then put in the pole. Now pour a bunch of cement (4+ bags), and make sure your pole is placed strait in the hole. Now shovel your dirt on top and you're good to go!