Yes, laying artificial turf on a concrete base is absolutely a DIY-friendly project for most NZ homeowners. Unlike laying turf over soil, you skip the excavation and compaction stages — the hard work is already done. That said, getting a quality, long-lasting result does require careful preparation, the right materials, and attention to drainage.
Is It Suitable for Your Space?
Before you buy anything, assess your concrete slab:
- Drainage is the single most important factor. Concrete doesn't absorb water, so you need to check that your slab has adequate fall (ideally at least 1–2% gradient) toward a drain or garden edge. Pooling water under artificial turf causes odours, mould, and premature deterioration.
- Condition of the concrete — patch any significant cracks or crumbling sections first. Minor surface imperfections are fine, but large voids or uneven areas will telegraph through the turf over time.
- Size and shape — simple rectangular areas are easiest. Complex curves or multiple joins require more skill and planning.
What You'll Need
Materials
- Artificial turf (allow 10–15% extra for cuts and joins)
- Artificial turf adhesive or double-sided joining tape (for joins and edges)
- Perimeter fixing — either adhesive, nails into timber edging, or grip strips designed for concrete
- Weed mat (optional on concrete, but can help with drainage and cushioning)
- Infill material such as silica sand or crumb rubber (check with your turf supplier whether your product needs it)
Tools
- Tape measure and chalk line
- Sharp carpet knife or turf cutter with spare blades
- Stiff broom or power brush
- Roller or sandbags (to press turf flat while adhesive cures)
- Safety gloves and knee pads
Step-by-Step: Laying Artificial Turf on Concrete
1. Clean the Slab Thoroughly
Sweep away all debris, then wash the concrete and allow it to dry completely. Any dirt or moisture will compromise adhesive bonds. If moss or algae is present, treat it with an appropriate cleaner and rinse well.
2. Check and Improve Drainage (If Needed)
If your slab has poor fall, consider a drainage layer — a thin layer of coarse sand or a proprietary drainage mat placed under the turf. Some artificial turf products have a perforated backing that helps water escape to the edges; check your product's specifications.
3. Roll Out and Acclimatise the Turf
Unroll your turf and let it sit in the sun for 30–60 minutes. This relaxes the backing and makes it easier to work with, especially on cooler NZ days.
4. Cut to Size
Always cut from the backing side using a sharp knife — this avoids cutting the pile fibres. Follow the grain of the turf (the direction the blades lean) and ensure all sections run the same way for a natural look.
5. Secure the Edges and Joins
On concrete, the most common method is perimeter adhesive — apply a bead of turf-specific adhesive around the slab edges, press the turf down firmly, and weight it while it cures. For joins between two pieces of turf, use joining tape and adhesive underneath, butting the edges tightly together and brushing the pile to hide the seam.
Avoid using standard construction adhesives — use products specifically formulated for artificial turf, as these remain flexible and won't crack with temperature changes. Products from Sika or specialist turf suppliers are worth considering.
6. Add Infill (If Required)
Some turf products need silica sand or rubber infill brushed in to support the pile and add weight. Follow your manufacturer's instructions — over- or under-filling affects both appearance and performance.
7. Brush Up the Pile
Using a stiff broom, brush the turf fibres against the grain to stand them upright. This gives that fresh, lush appearance and helps the infill settle evenly.
Drainage: The Key to Long-Term Success
Poor drainage is the number one cause of artificial turf problems on concrete. If water can't escape, you'll end up with smells (especially if you have pets), mould growth, and a soggy surface. Make sure:
- Water can flow freely off the slab edges or into a drain
- You haven't sealed the perimeter in a way that traps water
- Pet owners consider a deodorising infill or enzyme-based cleaning routine
For guidance on NZ outdoor drainage requirements, BRANZ is a useful resource.
NZ Climate Considerations
Artificial turf can get very hot in direct summer sun — this is worth knowing in warmer NZ regions. Some products handle UV better than others; look for UV-stabilised fibres with a warranty suited to NZ conditions. In wetter regions like the West Coast or Northland, prioritise drainage above all else.
When to Call a Professional
While this is a DIY-friendly job, consider hiring a qualified landscaper if:
- Your area is large (over 40–50 m²) or has complex shapes and multiple joins
- Your concrete slab has significant drainage problems that need remediation
- You want a guaranteed, professional finish with a workmanship warranty
- You're unsure about adhesive selection or substrate preparation
A professional landscaper will have access to commercial-grade tools (power brushes, turf cutters) that make a big difference to the finished result. You can find experienced local landscapers on tradedirectory.co.nz.
Note: Laying artificial turf on concrete does not require a building consent under the NZ Building Code in most residential situations, but if you're making changes to drainage or structures, check with your local council to be sure.
Licensed Building Practitioner (LBP)
