Description

Drainage Gravel 5mm

Achieve precise, reliable drainage in tight spaces with Drainage Gravel 5mm, a fine aggregate designed for plumbing, pipe backfill and detailed drainage applications.

This small, consistently graded gravel allows water to flow freely while packing tightly, making it ideal for narrow trenches, behind pipes and confined drainage areas where larger stones are not suitable.

Available Sizes

This product is available in multiple sizes to suit different drainage applications:

• 5mm Drainage Gravel — Ideal for behind pipes, ag lines and tight access areas
• 10mm Drainage Gravel — Suitable for general drainage and around services
• 20mm Drainage Gravel — Most popular size for all-round drainage and behind retaining walls

Key Features & Benefits

Fine 5mm aggregate — Perfect for tight spaces and precision drainage work.

Excellent water flow — Allows water to move through while maintaining support around pipes and structures.

Compacts into place — Small particles pack together for a stable, supportive layer.

Ideal for pipe backfill — Commonly used around ag pipe, poly pipe and plumbing systems.

Versatile application — Suitable for drainage, retaining walls and general landscaping.

What It’s Used For

Behind Drainage Pipes — Ideal for ag pipe and slotted drainage systems.

Tight Trenches & Confined Areas — Perfect where larger drainage gravel cannot be used effectively.

Retaining Wall Drainage — Suitable for narrow backfill zones requiring controlled drainage.

Courtyards & Light Landscaping — Can be used in small functional or decorative drainage areas.

Why It Performs Well

Drainage Gravel 5mm works effectively due to its small, uniform particle size, allowing it to:

• Flow easily around pipes and services
• Fill gaps in confined spaces
• Maintain consistent drainage performance
• Provide support without large voids

This makes it ideal for precision drainage work where accuracy and fit are critical.

Important Product Characteristics

Fine drainage gravel — Smaller than standard drainage stone, designed for detailed applications.

Not ideal for high-flow areas — Larger sizes (10mm–20mm) are better suited for bulk drainage systems.

Free-draining material — Allows water movement while maintaining structural support.

Natural variation — Colour and particle size may vary between batches.

Installation Tips

• Use around ag pipe or slotted pipe for best results
• Combine with geofabric to prevent clogging
• Compact lightly to ensure even coverage without restricting flow
• Use larger drainage gravel behind this layer for multi-stage drainage systems

Practical Information

This product is supplied as a bulk material, with options for delivery or Bulka Bags (1m³) for sites with restricted access.

Due to the natural materials used, colour and size may vary between batches, which is normal.

Also available in Bulkabags – Click Here

Bulka Bags