After I built all the boxes (made out of cedar 1x4s) and filled them with soil we dug holes for each post to start our fence. We rented a post hole digger from Boone Rental and it was so slick. We had all the holes dug about an hour. We had a lot of tree roots to go through too. Also, we got the mulch at the mulch mart in waukee. You can buy a huge truck load for about 70 bucks.