Fencing on Sloping Ground: Stepped vs Raked
There are two ways to deal with a slope, they look completely different, and choosing the wrong one is the most common reason a fence looks wrong.
Stepping
A stepped fence keeps every panel level and drops each one relative to the last, so the top of the fence forms a series of horizontal steps down the slope. The gap under each panel is larger at its low end and smaller at its high end.
Done well — with even step increments worked out from the actual fall — it reads as a deliberate architectural rhythm. Done badly, with arbitrary steps of different sizes, it reads as a mistake.
Stepping suits horizontal slats, because it keeps the slat lines horizontal and lets them stay parallel to the top of the fence. It also suits sites that already change in defined levels rather than falling continuously.
Raking
A raked fence tilts the whole panel so its top and bottom rails run parallel to the ground. There are no steps; the fence follows the slope as one continuous line and the gap underneath stays constant.
Raking suits vertical slats and pickets, because the slats stay plumb while the rails tilt — which looks correct. Raking horizontal slats is possible on gentle, consistent grades but the slats then run at an angle to true horizontal, which starts to look wrong as the slope increases.
On a long, evenly falling boundary a raked vertical run is usually the best-looking solution available.
- Steep or uneven fall: step it, in even increments
- Long, even fall: rake it, with vertical slats or pickets
- Site already has defined levels: step it
- Gentle consistent grade: either works — choose on appearance
What the slope does to your gate
Gates are rigid rectangles, so they cannot step or rake in the same way a fence run can — but the ground still affects them.
A swing gate must clear the highest point along its arc, so on rising ground the gap under the closed gate at the low side is at least the difference in level. A vertical slat or picket gate can have its bottom rail raked, which helps considerably.
A sliding gate sidesteps the problem, which is one reason sliders are so common on sloping driveways.
How to get a useful quote
Photos matter far more than measurements on a sloping run. Take shots along the boundary from both ends, standing back far enough to see the whole line and the ground it follows.
Note roughly how much higher one end is than the other. It does not need to be surveyed — 'about half a metre over the 20 metre run' is enough to start with.
Ask for both options if you are undecided. Seeing them priced against each other for your actual run is more useful than any general rule.
