How to Lay Bluestone Steppers

A DIY Guide to Installing Bluestone Stepping Stones

Bluestone steppers are a timeless choice for garden paths, courtyards, and landscaped spaces. Whether you’re creating a casual garden walkway or a more structured path, proper installation is key to a stable, long-lasting result. This guide walks you through how to lay bluestone steppers using two popular methods: cracker dust or a cement mortar bed

Tools & Materials You’ll Need

Before you begin, gather the following tools and materials to ensure a smooth installation:

Tools

• Shovel or mattock

• Rubber mallet

• Spirit level

• Broom

• Wheelbarrow

• Compactor (hand tamper or plate compactor)

Materials (depending on installation method)

• For cracker dust installation: Cracker dust

• For cement installation: General purpose (GP) cement, brickies sand, water

• Optional finishing: Penetrating stone sealer

Step 1: Plan Your Bluestone Path

Good planning ensures both comfort and visual balance.

1. Lay the bluestone steppers on the ground first to test spacing and flow.

2. A natural walking stride is typically 500–700 mm between stone centres.

3. Once satisfied, mark the position of each stepper.

Option A: Laying Bluestone Steppers on Cracker Dust

(Ideal for garden paths and informal outdoor areas)

Step 1 — Prepare the Ground

• Remove grass, roots, and loose soil.

• Dig each hole to a depth of 80–100 mm, allowing for:

  • 50mm compacted cracker dust base

  • 35 mm thick bluestone stepper

Step 2 — Add the Cracker Dust Base

1. Spread 25–35 mm of cracker dust into the hole.

2. Lightly water and compact until firm and level.

Step 3 — Set the Bluestone Stepper

1. Place the stepper onto the compacted base.

2. Check for level and stability using a spirit level.

3. Gently tap with a rubber mallet to bed the stone securely.

Step 4 — Finish the Edges

• Backfill around the stepper with soil, mulch, or additional cracker dust.

• Sweep the surface clean.

Option B: Laying Bluestone Steppers on a Cement Mortar Bed

(Best for high-traffic areas or where extra stability is required)

Step 1 — Prepare the Ground

• Dig each hole to a depth of 80–90 mm, allowing for:

  • 40–50 mm mortar bed

  • 35 mm bluestone stepper

  • Minor adjustment space

Step 2 — Mix the Mortar

• Use a ratio of 4 parts brickies sand to 1 part cement, adding water gradually.

• Mix until you achieve a thick, workable consistency.

Step 3 — Lay the Mortar Bed

1. Spread 40–50 mm of mortar evenly in the hole.

2. Place the stepper on top and press down firmly.

3. Check levels and adjust before the mortar begins to set.

Step 4 — Allow to Cure

• Leave the steppers undisturbed for 24–48 hours before walking on them.

Optional: Sealing Your Bluestone Steppers

Sealing bluestone is optional but recommended for stain resistance, colour enhancement, and easier maintenance.

How to Seal Bluestone

1. Clean the stones thoroughly and allow them to dry completely.

2. Apply a penetrating stone sealer with a roller or sprayer.

3. Follow the manufacturer’s drying and recoat instructions.

4. Avoid foot traffic until the sealer has fully cured.

Extra Tips for a Professional Finish

• Keep each stepper level from side to side, with a slight fall for drainage.

• For soft or unstable soil, add 50mm of road base beneath the cracker dust.

• If a stone feels uneven, lift it and add more base material to the low points rather than forcing it down.