Horse arena construction in the Waikato and Taupō
A level, well drained arena that rides the same in August as it does in January. The surface gets the attention, but the base and the drainage decide whether it works.

Who builds horse arenas in the Waikato?
Trident Earthmoving builds horse arenas across the Waikato and Taupō, from the equestrian country around Cambridge and Matamata to lifestyle blocks near Taupō. An arena is cut to level, drained so water gets away, then the base is compacted and rolled flat with a laser level, ready for the surface you choose. We quote the base, the drainage and the cartage separately.
Why arenas go wrong
Nearly every arena complaint comes back to one of two things. It holds water, or it is not level. Both are decided long before the surface goes on. An arena is really a very flat, very well drained pad that happens to have sand on it. Get the base right and the surface does its job. Get the base wrong and no amount of good footing saves it.
The base is the arena
A compacted base laser levelled to a consistent fall, with drainage underneath. The surface gets the credit, but the base is what decides whether it rides the same in August as it does in January.
Cut, fill and wall if needed
Sloping site? That is cut and fill, and often a retaining wall on the low side. We build both, so it stays one job with one crew rather than three trades pointing at each other.


Arenas built from the base up
We excavate and form the arena, put in the drainage, and build a compacted base laser levelled to fall. From there we prepare for the surface and can place it, or leave it ready for your surface supplier. Standard sizes like 20 by 40 and 20 by 60 are straightforward. If you are fitting one into an awkward paddock or a slope, we will work out what actually fits before you commit to a size.
How an arena build runs
- Pick the spot. Where it sits on the property makes a big difference to how much earthworks it takes.
- Quote it. Excavation, drainage, base and surface prep, clearly separated.
- Cut and drain. Excavate to level, then drainage in before anything goes back on top.
- Build the base. Compacted in layers and laser levelled to a consistent fall.
- Prepare the surface. Placed by us or left ready for your supplier.
What does a horse arena cost?
Two arenas the same size can cost very different amounts. Almost all of the difference is in the ground you start with, not the arena itself:
- How flat the site already is. A near level paddock needs a fraction of the cut and fill that a sloping one does. This is usually the biggest single factor, and it is why picking the right spot on the property is worth doing properly.
- Size. A 20 by 60 is half again the area of a 20 by 40, and that carries through the excavation, the base and the surface.
- Drainage. Wet ground, or an arena with nowhere obvious to drain to, needs more work under it.
- Base material and cartage. How far metal has to come is a real cost. If there is a workable pit on the property, that changes things.
- Surface. Sand, sand and fibre, or a rubber blend all price differently, and some owners supply their own.
We quote arenas on site, with the excavation, drainage, base and surface prep shown separately so you can see where the money goes and decide what to include.
Where we work
Based at Whakamaru, we cover Taupō, the South Waikato, Waipā, Hamilton and out to Rotorua and the King Country. Here is the patch, and what we tend to see on the ground.
Common questions
Still not sure? Give us a call and we will talk it through.
Yes. An arena that holds water is unusable for a good chunk of the year and the surface breaks down faster. Drainage is not the place to save money.
20 by 40 metres is the common size and suits most riding at home. 20 by 60 is a full dressage arena. If you are tight for space we will tell you honestly what fits and what it will cost to make it fit.
Contact us
Tell us what you are dealing with and we will come and size it up.











