How to Install Stepping Stones Alongside an Existing Driveway

Installing stepping stones alongside an existing driveway is a practical and attractive DIY project that most homeowners can tackle over a weekend. Done properly, they create a clear path for foot traffic, protect your lawn or garden edge, and add kerb appeal. The key is good ground preparation — rush that step and your stones will rock, sink, or shift within a season.

Planning Your Stepping Stone Path

Before you buy a single stone, walk the route naturally a few times and mark where your feet land. This gives you a realistic spacing guide. A comfortable stride for most adults lands roughly 400–500 mm centre to centre, but adjust to suit your household.

Consider:

• Stone size and shape — square or rectangular pavers (typically 400×400 mm or 600×400 mm) are easiest to lay level. Irregular flagstones look great but take more time to bed properly.
• Material — concrete pavers, natural schist, bluestone, sandstone, and reconstituted stone are all popular in NZ. Choose something that complements your existing driveway surface.
• Thickness — aim for at least 40–50 mm thick stones for durability underfoot and resistance to cracking.
• Quantity — measure the total path length, divide by your chosen spacing, and add 10% for breakage or offcuts.

You'll find a good range of pavers and stepping stones at Bunnings and Mitre 10, and your local landscape supply yard may stock natural NZ stone options.

Tools and Materials You'll Need

• Spade and flat-bladed spade or turf cutter
• Rubber mallet
• Spirit level and straight edge
• Tape measure and string line
• Wheelbarrow
• Compactor plate or hand tamper (hire from a local hire centre)
• Bedding sand (coarse, washed — not beach sand)
• Crusher dust or AP20 compacted gravel for the sub-base
• Optional: geotextile fabric to suppress weeds

Step-by-Step Installation

1. Mark Out the Path

Use spray paint or a garden hose to mark the line of your path alongside the driveway. Keep a consistent offset from the driveway edge — typically 50–100 mm — to allow for edging or a small planting strip if desired.

2. Excavate Each Stone Position

Dig out each stone position to a depth of approximately 150 mm (more if your ground is soft or clay-heavy). Remove all grass, roots, and organic material. In NZ's wetter regions — particularly Northland, the West Coast, or anywhere with heavy clay soils — poor drainage is the number-one cause of sunken or tilted stepping stones, so don't skimp on depth.

3. Lay the Sub-Base

Fill the base of each excavation with 75–100 mm of compacted AP20 gravel or crusher dust. Compact it firmly with a hand tamper or plate compactor. This layer provides drainage and a stable foundation. If weed growth is a concern, lay a sheet of geotextile fabric over the compacted sub-base before adding bedding sand.

4. Add Bedding Sand

Spread a 25–40 mm layer of coarse bedding sand over the compacted sub-base. Screed it roughly level — you'll fine-tune this as you set each stone.

5. Set the Stones

Place each stone onto the sand bed and press it down firmly. Use a rubber mallet to tap it into position. Check it is level in all directions with a spirit level — or with a very slight fall (1–2%) away from the driveway to shed water. Adjust the sand depth underneath as needed. The finished surface of each stone should sit 5–10 mm above the surrounding lawn or soil level so it stays clear of grass creep and surface water.

6. Check Spacing and Alignment

Step back regularly and walk the path to check the spacing feels natural. Adjust stones before the sand settles.

7. Fill the Joints and Surrounds

Once all stones are set and level, brush fine sand or a jointing compound into any gaps between stones if they are close together. For stones set in lawn, simply backfill the edges with soil and re-seed or re-turf as needed.

Drainage Considerations

NZ's Building Code clause E1 requires that surface water is managed away from buildings. While a simple stepping stone path alongside a driveway is unlikely to need a building consent (check Schedule 1 exemptions with your local council to be sure), you should still ensure your path doesn't trap or redirect water toward your house foundation or your neighbour's property. Grade the surrounding ground to drain away naturally. BRANZ has useful guidance on site drainage best practice.

Keeping Them Looking Good

In shaded or damp spots, moss and algae can make stepping stones slippery — a real hazard. A diluted bleach wash or a proprietary paver cleaner will sort this out. Avoid high-pressure washing on softer sandstone or reconstituted pavers as it can erode the surface.

When to Call a Professional

Most stepping stone installations are well within DIY capability. However, consider hiring a qualified driveway layer or landscaper if:

• Your ground is very soft, waterlogged, or has significant slope requiring retaining or drainage work.
• You want a continuous paved path (rather than individual stepping stones) which may involve more complex edging, compaction, and potentially a building consent.
• You're unsure about how the path might affect stormwater drainage near your home.

You can find experienced local driveway layers and landscapers on tradedirectory.co.nz who can assess your site and get the job done right.

Sources & Further Reading

• MBIE Building Performance — Building Consent Exemptions
• BRANZ — Site Drainage and Landscaping Guidance
• Bunnings NZ — Pavers and Stepping Stones
• Mitre 10 NZ — Paving and Landscaping
• WorkSafe NZ — Safe Use of Hire Equipment