Free deer stand plans can be found on the Free Deer Stand website. There are plans for a freestanding 15-foot box, a bi-level 15-foot box and a tree deer stand. The site also contains plans for blinds, and it has links to articles and tips on deer hunting.
Before setting up a deer stand, make sure that the kind of deer you want to hunt pass through the area. Look for signs that bucks are using trees or other objects as rubs for their antlers or backs. Look for bottlenecks in known deer trails, and place your stand away from that area but within shooting distance of deer passing through. Camouflage your stand to match its surroundings.