• Local building and zoning codes: Most communities have ordinances concerning the height, placement, and setback requirements for fences. Consult your local building authorities prior to installation.
• Underground utilities: Before digging postholes, verify with utility companies what's under your yard. Repairing a ruptured water main is no picnic.
• Property lines: There should be no guesswork here. If you're unsure about your yard's boundaries, hire a surveyor to relocate and mark the property lines.

Few images sum up the spirit of the South better than a well-shaded porch surrounded by a white picket fence. Today such enclosures might be made of wood, metal, vinyl, or a host of other materials. So which one's right for you? Here's a lineup of fencing types to help you decide.

• Chain link and wire mesh: Versatile and easily available, chain link creates a durable barrier at a low cost. While not as attractive as other fencing types, this system is valued more for its air circulation and see-through qualities. Either aluminum coated or galvanized with zinc, the wire mesh and its associated parts can be found at most home-improvement and fence-supply stores. For a sleeker look, vinyl-coated chain link (in basic colors such as black, green, and brown) is also an option. Although more expensive, this type blends in more convincingly with its surroundings.
• Wood: While the design possibilities may be endless, wood fences are typically constructed with either 4 x 4 or 6 x 6 posts that support 2 x 4 upper and lower horizontal rails. Adding stability and beauty, pickets are attached to the rails in a variety of widths and spacing. Because wood is subject to decay, the choice of species is crucial. Also linked with selection is cost. Species that are naturally decay resistant, such as redwood and red cedar, make for great-looking fences, but the price can be sky high.