Choosing a Fence: Material, Height, and the Rules Nobody Reads
2 min read · Last reviewed March 2026
A fence is a twenty-year decision made in an afternoon. Here is what actually differs between the options.

Most fence regret is not about the material chosen but about a rule missed beforehand: a height limit, a boundary line, or a shared-cost agreement with a neighbour. Settle those first, then choose the material.
Check before you buy anything
- Local height limits, which are often lower for front-facing than side or rear boundaries.
- The actual boundary line — a survey or deed plan, not the existing fence, which may already sit on the wrong side.
- Whether the finished side is required to face the neighbour's property, which is standard courtesy in many areas and a rule in some.
- Utility lines before digging any post holes.
Material comparison
| Material | Typical lifespan | Maintenance | Relative cost |
|---|---|---|---|
| Pressure-treated wood | 15-20 years | Restain or reseal every 2-3 years | Low-Medium |
| Cedar or redwood | 20-25 years | Occasional oiling; ages to grey if untreated | Medium-High |
| Vinyl / PVC | 20-30 years | Occasional wash, no painting | Medium-High |
| Chain-link | 15-20 years | Almost none; rust check on older galvanised runs | Low |
| Aluminium or steel | 25+ years | Touch-up paint on scratches | High |
Post spacing and depth decide durability more than the panels do
Posts set less than a third of their above-ground height into the soil rack loose within a few years, and this is the single most common fence failure regardless of the material chosen for the panels. Standard practice is one third of the total post length below grade, set in concrete, with a gravel base beneath the post to let water drain away from the end grain.
Shared boundary fences
Where a fence sits exactly on a shared boundary, many jurisdictions treat it as jointly owned regardless of who paid, which means both neighbours technically need to agree on removal or major changes even years later. A conversation and a simple written agreement before building avoids most future disputes.
How far apart should fence posts be?
6 to 8 feet is standard for wood panel fencing. Taller or solid panel fences benefit from posts closer to 6 feet apart to resist wind load.
Is concrete always needed for posts?
For permanent fences, yes. Gravel-only setting works for very short, lightweight, temporary fencing but will not hold a 6-foot privacy panel through a storm.
Run the numbers for your own project
- Deck and Fence Material CalculatorHow much timber does my deck or fence need?
- Project Cost EstimatorWhat will this project cost me?
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