How to Lay Marshalls Lunar Block Paving (Step-by-Step Guide)

Installing Marshalls Lunar block paving correctly is essential if you want a driveway that lasts.

Following the proper installation method ensures your paving stays level, drains correctly, and resists movement over time.

This guide breaks down the key steps based on Marshalls’ recommended installation process — simplified so you can get it done properly.

What You’ll Need

• MOT Type 1 sub-base
• Sharp sand (grit sand)
• Wacker plate (compactor)
• String lines and level
• Rubber mallet
• Block cutter or saw

We supply all sub-base materials with fast nationwide delivery — view building aggregates

Step 1: Excavation

• Dig out the area to the required depth (typically 150–250mm total build-up)
• Ensure finished paving sits at least 150mm below DPC
• Remove all soft ground and organic material

This is critical — poor excavation = future movement

Step 2: Install Edge Restraints

• Install kerbs or edging before laying sub-base
• Must be strong enough to prevent movement
• Ensure a solid vertical edge

Without this, the paving will spread over time 

Step 3: Lay and Compact Sub-Base

• Use MOT Type 1 (40mm to dust)
• Lay in layers of no more than 75mm
• Compact each layer thoroughly before adding the next

Proper layering and compaction are essential to prevent failure 

Step 4: Create Falls for Drainage

• Build in fall to allow water runoff
• Typical fall:
  • 1:80 lengthways
  • 1:40 cross fall

Without drainage, water will sit and cause long-term damage 

Step 5: Lay Sharp Sand Bedding

• Use grit sand (not building sand)
• Lay approx. 30–50mm depth
• Screed level using rails
• Do not walk on it once levelled

Step 6: Lay Marshalls Lunar Blocks

• Lay blocks with 2–5mm joint spacing
• Use string lines to keep lines straight
• Mix blocks from multiple packs to avoid colour banding

Always lay full blocks first, then cut edges 

Step 7: Cutting and Edges

• Cut blocks neatly to fit edges
• Avoid cutting blocks smaller than ¼ size
• Use proper tools for a clean finish

Step 8: Jointing and Compaction

• Brush in kiln-dried sand
• Compact with a plate compactor
• Use a rubber mat to avoid damage
• Refill joints and repeat if needed

Joints must remain full to maintain stability 

Shop Marshalls Lunar Block Paving

View our full range of Marshalls Lunar block paving products

Smooth vs Textured – Which Should You Choose?

Read our Marshalls Lunar smooth vs textured comparison guide

Final Word

Installing Marshalls Lunar block paving properly comes down to three things:

• A solid sub-base
• Correct drainage
• Careful laying and compaction

Get those right, and you’ll have a driveway that looks sharp and performs for years.