Panel a Fence: The Complete Project Guide

1. Confirm the property line and local rules first

Locate your actual property line — not the visible landscaping edge, hedge, or where a previous fence stood, all of which can be inaccurate. A survey or plat map is the reliable source; a neighbor's fence position is not proof of the boundary. Check local ordinances for maximum fence height (front yard and backyard limits often differ), setback requirements from the property line, and whether a permit is required — many jurisdictions require one for any fence over a certain height.

If the fence borders a shared boundary, a conversation with the neighbor before building, even where not legally required, avoids the more expensive problem of a dispute after the fence and its concrete footings are already in the ground.

2. Plan the run and post spacing

With the legal boundary confirmed, measure the actual fence run length and run it through the fence calculator at a post spacing appropriate for your fence height and local wind exposure — see fence post spacing guide for spacing by material and wind region. Corner and gate posts typically need to be planned as larger or more deeply set than straight-run line posts, since they carry more lateral load.

Mark every post location with a stake before digging any holes, and walk the full run checking for underground utilities (call your local utility locating service, typically free) — a struck utility line is a genuinely dangerous and expensive mistake that's entirely avoidable with a quick call before digging.

3. Set posts with the right concrete and depth

Run the concrete post calculator per hole, checking depth against your local frost line — a post set too shallow can heave with seasonal freeze-thaw and lean over a year or two even if it looked perfectly plumb on installation day. A gravel drainage layer at the base of each hole, beneath the post, keeps water from pooling against the post base.

4. Panels, pickets, and rails

Once posts are set and concrete has cured (check the product's cure time before loading posts with panel weight), install rails first, then panels or pickets per the fence calculator's bay count. Keep the bottom of pickets a small gap above grade, both for drainage/rot resistance and to accommodate ground settling over time without the fence bottom digging into soil.

Work from one fixed end (typically a corner or the house) toward the other, checking each panel or picket section for plumb and level as you go — small errors compound over a long run if you wait until the end to check, and a fence that's visibly out of level is far more noticeable than a wall paint job with a similar-sized imperfection.

5. Gates last

Gates are typically the last element installed, once the fence run on either side is fixed and the exact opening width is confirmed on-site rather than assumed from the original plan — ground isn't always perfectly consistent, and a gate opening framed to the plan's exact dimension can end up slightly binding if the actual post positions drifted even slightly during installation. Gate posts generally need larger, more deeply set footings than line posts, since a gate's repeated opening and closing puts more cumulative lateral stress on its posts than wind load alone puts on a straight run.

6. Matching or coordinating with a neighbor's existing fence

If a new fence run connects to or borders an existing fence (a neighbor's fence, or a different section built at a different time), decide upfront whether to match its height, style, and post spacing or intentionally differ — a jarring transition where two mismatched fence styles meet is a common, avoidable aesthetic problem, and coordinating with a neighbor before building (even where not legally required) tends to produce a better result than each side building independently to their own preference.

7. Finishing: stain, paint, or leave natural

Wood fencing can be left to weather naturally, stained, or painted, and this decision affects long-term maintenance more than the initial build — a stained or painted fence needs periodic reapplication (every few years depending on climate and product), while a naturally weathering fence needs none but will show more visible aging over time. If staining or painting, most manufacturers recommend waiting for pressure-treated lumber to dry out somewhat (weeks to a couple months) before the first application, similar to the drying period recommended for deck boards.

Tools and materials checklist

• Property survey or plat map, plus any required permit paperwork.
• Post-hole digger or auger, string line and stakes for marking the run, and a level (both post level and standard).
• Post caps or finials if your fence style uses them, and gate hardware (hinges, latch) sized for the gate's weight.
• Exterior-rated screws or nails matched to your lumber's treatment chemistry.
• A post-hole depth reference for your specific frost line, confirmed with your local building department if unsure.
• Stain, paint, or sealant if finishing the fence, matched to the lumber type and applied only after adequate drying time.

8. Maintaining the fence after it's built

A wood fence benefits from periodic inspection (annually is a reasonable rhythm) checking for loose fasteners, post movement, and any rot starting at ground-contact points, since catching an issue early is a small repair while catching it late can mean replacing an entire section or post. Vinyl and aluminum fencing need far less maintenance but are still worth a periodic check of post connections and any hardware, since even low-maintenance materials rely on the same underlying post-and-footing structure that can shift over time regardless of the panel material's durability.