Block Paving Driveway Guide: How to Lay Durable Driveways and Patios

David Michell
Aug 27
2 min read

A block paving driveway is an excellent choice for enhancing your home’s curb appeal while offering durability and low maintenance. Whether you’re replacing an old surface or starting a new project, following the correct installation process is key. This guide provides a step-by-step approach to laying a block paving driveway to ensure a long-lasting and professional finish.

Planning and Design

Proper planning is essential for a successful driveway project.

Measure the Area: Accurately measure your driveway to determine the number of blocks required.
Choose a Pattern: Select a paving pattern such as herringbone, stretcher bond, or basket weave to suit your home’s style.
Consider Drainage: Ensure the surface allows water to drain away from your home, with a slight slope for runoff.
Set a Budget: Account for materials, tools, and any assistance you may require.

Excavation

Excavating correctly provides a stable base for your driveway.

Mark the Area: Outline the driveway with string lines and pegs.
Dig to the Right Depth: Remove soil to a depth of approximately 200–250mm, considering sub-base, sand layer, and block thickness.
Maintain a Slope: Keep a gentle gradient to encourage proper drainage.
Remove Debris: Clear roots, vegetation, and old surfaces for a clean foundation.

Installing Edge Restraints

Edge restraints prevent blocks from moving and maintain the driveway’s shape.

Select Materials: Use kerbs or concrete edging stones.
Set in Concrete: Secure the edges firmly in a concrete base.
Check Alignment: Ensure restraints follow the desired slope and are level.

Laying the Sub-Base

A solid sub-base ensures durability and helps with drainage.

Choose Material: Use crushed stone or MOT Type 1.
Spread Evenly: Distribute material across the excavated area.
Compact Thoroughly: Use a plate compactor to create a firm, level base.

Bedding Layer

The bedding layer supports the blocks and keeps them level.

Spread Sharp Sand: Lay a 30–50mm layer over the compacted sub-base.
Screed Smooth: Use a straightedge to level the sand.
Check the Slope: Ensure the gradient remains suitable for water runoff.

Laying the Blocks

Accuracy is critical when placing the blocks.

Start from a Corner: Begin laying blocks from a corner and work outward.
Follow Your Pattern: Keep blocks tightly fitted in the chosen pattern.
Cut as Needed: Trim blocks for edges or corners using a block splitter or saw.
Tap into Place: Gently tap each block with a rubber mallet to ensure stability.

Jointing

Filling the joints locks the blocks into position.

Apply Sand: Spread kiln-dried sand over the blocks.
Sweep Into Joints: Use a broom to fill all gaps.
Compact Again: Run a plate compactor to settle the blocks and sand.
Top Up: Reapply sand to any joints that settle further.

Final Touches

Finishing steps make your driveway both practical and attractive.

Clean the Surface: Remove leftover sand and debris.
Seal (Optional): Applying a sealant can protect the blocks and enhance color.
Cure Time: Allow 24–48 hours before using the driveway.

Conclusion

Laying a block paving driveway is a rewarding project that boosts your property’s appearance and value. Careful planning, precision, and patience are key to achieving a professional finish. While block paving is a popular choice, it’s worth noting that tarmac driveways provide an alternative look and may suit certain settings better. Assess your needs to choose the right surface for your home.