Last Modified: February 14, 2024

Grey Pea Gravel

Resin-Bonding to Loose-Fill Hardscaping

Grey pea gravel close up

By Ben Parrot - Landscape Gardener & Amateur Geologist


Stone landscaping material and construction aggregate

Geological name(s):


Other Name(s):

Pea gravel grey, grey pea shingle, grey pebble gravel, light grey pea gravel, dark grey pea gravel, small grey pea gravel


Welcome to the only encyclopaedia for decorative aggregates and landscaping materials. Grey pea gravel, also known as grey pea shingle, is an economical and hard-wearing decorative aggregate characterised by its small, rounded stones. They are typically between 1mm to 10mm in size and typically have a smooth texture and a natural grey colour that adds a subtle and elegant touch to landscaping projects. Its versatility makes it suitable for various uses, such as driveways, pathways, garden borders, and decorative features, including resin-bound gravel features.

This comprehensive encyclopaedia listing about grey pea gravel, a hardscape and construction aggregate. It details the product's specifications, accompanied by photographs, and outlines its benefits, applications, and incompatibilities as a landscaping material. Additionally, this entry serves as a gateway to a wealth of DIY resources, with a list of comparable alternatives, articles offering design inspiration and fundamental principles, and a collection of straightforward, step-by-step instructions for constructing your own hardscaping features.






fall safety





fish friendly

eco friendly



diy friendly




Usually, quartz or limestone


Light to dark greys and variations


Rounded to angular

Close up of grey pea. Jpg

Size Range


Grey pea shingle 10mm, grey pea gravel 1-3mm

Fall Safety

1.8m/6' drop at 15cm/6" depth





Fish Friendly


Grey shingle close up. Jpg









Grey gravel garden path


Decorative aggregates like pea gravel offer a multitude of benefits in garden and landscaping design. Pea gravel is hard-wearing and creates a smooth and uniform surface, making it ideal for high-traffic outdoor areas such as pathways, driveways, and patio areas. Its small size also allows for easy installation and customisation. According to a landscaping survey conducted in 2022, 83% of homeowners who used grey pea gravel reported high satisfaction with its durability and cost-effectiveness compared to other decorative stones.

The smaller, 1-3mm pebbles are classified as resin-bound gravels and aggregates, with the size and shape ideal for resin-binding. The larger, 6-10mm grey pea gravel, is one of the most versatile products in decorative landscaping and construction with many loose-fill and construction applications.

Grey pea gravel's colour comes in varying shades of grey, providing a neutral backdrop that highlights the greenery and other colours in the garden. This complements a wide range of design styles as it blends seamlessly into modern and traditional landscapes.

  • Inhibits weeds
  • Improves drainage
  • Hard-wearing
  • Eco-friendly, sustainable
  • Low-maintenance
  • Moisture retention
  • Versatile all-rounder
  • pH neutral
  • Transform space fast
  • Safe for aquatic life
  • Root protection
  • Easy to lay


According to a survey conducted by the US National Association of Landscape Professionals, 67% of landscape professionals use pea gravel in their projects, highlighting its popularity and practicality for outdoor spaces.It  is often used in the construction of French drains for managing excess water to prevent water logging in low-lying areas. It is also combined with concrete for added strength and cost-savings.

The larger, 6-10mm grey pea gravel is one of the most versatile products in decorative landscaping and construction. It is suited to loose-fill hardscape applications such as mulching, garden paths and driveways. It is also very good for use as a play area safety surface, offering a critical fall height safety rating of 1.8m drop, when laid at a depth of 15cm or greater. It provides good drainage and is less abrasive in case of falls.

1mm-3mm pea gravel is widely used for resin-bonded features like pathways, driveways, patios and swimming pools because it is highly permeable, allowing water to drain and effectively preventing issues like water pooling or erosion. This also makes it an practical choice for areas prone to heavy rainfall or where proper drainage is critical.

Ultimately, grey gravel can be used in a variety of applications. Its neutral colour and varying sizes make it suitable for creating contrast and texture in garden designs. For example, in Japanese-inspired Zen gardens, grey pea gravel represents flowing water or raked patterns, creating a tranquil and meditative space. The quartz variant is pH neutral, making it fish-friendly and suitable for use in water features and aquascaping application.. 

In the following section, we list many common grey gravel uses, although it is not exhaustive. Wherever there is a hyperlink beside an item, an article from Outdoor Aggregates about the topic is available.

Grey gravel garden

Inspiration and Informational Articles

DIY-Friendly How-To Guides

Need to work out how many stone chippings your  project needs? Try our free gravel calculator.

Other Applications

Some other excellent applications for grey pea shingle include:

  • Base for terrace, patios or outdoor seating areas
  • Sub base layers
Grey pea under garden leaves. Jpg

Unsuitable For

The following list represents the kinds of applications that grey pea shingle may not be suitable for:

  1. 1
    Grey pea gravel is not wheelchair-friendly and can be challenging for individuals with mobility issues to navigate.
  2. 2
    Areas with fine plantings: If you have creepers or low-growing plants in your garden gravel can make it harder for these plants to thrive, as it may interfere with their root systems as they try to grow.
  3. 3
    Erosion control: On steep slopes or areas with significant inclines, the loose nature of the gravel can make it prone to movement which can be problematic on slopes.
  4. 4
    Loose-fill grey pea gravel is not ideal for areas with heavy foot traffic or frequent vehicle use. It can become stuck in tyre treads and also shift over time, leading to gravel being tracked into indoor and outdoor spaces.

Similar Alternatives to Grey Pea Gravel

The following is a list of decorative aggregates which are alternatives to grey pea gravel. They may offer you a more suitable variation on the primary colour, a more economical option, or a close substitute for cases where the base material may be unsuitable for the project you are creating, e.g. limestone is not fish-friendly, where slate is.








creamy white

10-20mm (0.4-0.8")





3-20mm (0.01-0.8")



pale yellow

5-20mm (0.2-0.8")





6-10mm (0.4")



golden, brown


10-20mm (0.4-0.8")





10-20mm (0.4-0.8")



Under £80







Weeding garden stones. Jpg

Grey pea gravel is low maintenance, especially when a heavy duty membrane is installed underneath to suppress weeds, and provides a cost-effective solution for larger landscaping projects. Regular raking can keep the surface level and free from debris. Over time, some replenishment may be needed, especially in high-traffic areas. Occasionally, washing may be necessary to maintain its colour and prevent algae growth. Resin-bonded features need to be checked for any areas where the gravel may have come loose and consider repairing in a timely manner.

According to a study by the National Gardening Association, only 5% of homeowners reported any maintenance issues with grey pea gravel, making it an ideal landscaping solution for low-maintenance outdoor spaces. For more on how to clean gravel, read our article: how to clean garden stones.

Purchasing Tips

Decorative stone driveway with palms

When purchasing grey gravel, consider the size options and quantity necessary for your project. Where available, it is cost-effective to request a sample to assess the stone's colour and quality against your design requirements. Also, consider the different sizes; for instance, grey pea shingle 10mm is typically used for loose-fill paths and driveways, while smaller 1-3mm gravel is used for resin-bonding applications.

Using our gravel calculator to get an unbiased estimate for your project needs is one of the best and easiest ways to order the right amount without the risk of shortfalls or over-spending - all you need is a few measurements of the space. Ordering in bulk bags is often more cost-effective than smaller quantities. Also, always ensure you consider the delivery aspects, especially the vehicle access to the site.

Pea Gravel Resin Bonding Coverage Guide

Golden quartz pea gravel generally comes in 25kg sizes, and a 25kg bag will usually cover 1.25㎡ at 12mm thickness. The following information applies on a per bag basis.

  • For foot traffic areas, a thickness of 12mm with a coverage of 1.25m² is typically adequate.
  • For light vehicular traffic, such as motorbikes or cars driving on and off, then it's recommended to use a thickness of 15mm with a coverage of 1m².
  • For normal vehicular traffic, a thickness of 18mm with a coverage of 0.75m² is recommended.

You will also require ~800g UV stable resin and ~ 1g of resin activator per 25kg bag.


What is the difference between grey pea gravel and other types of pea gravel?

Grey pea gravel differs from other types of pea gravel primarily in colour. While traditional pea gravel typically ranges from beige to brown, grey pea gravel has a more contemporary and versatile appearance.

How does grey pea gravel compare to other types of decorative stones?

Pea gravel creates a smooth and uniform surface, unlike larger stones, making it ideal for pathways, driveways, and patio areas. Its small size also allows for easy installation and customisation.

Are granite chippings good for driveways?

Yes, granite chippings are durable and hard-wearing, making them suitable for driveways and landscaping.

Is gravel different from granite?

Yes, gravel can be made from various stones, including granite, but it also includes other types, like limestone or quartz.

What is steel grey granite used for?

Due to its durability and aesthetic appeal, steel grey granite is used for countertops, flooring, and outdoor landscaping projects.

There are many wonderful types of gravel and aggregates available for your project needs. Check them out!

About the author 

Ben Parrot is a landscape gardener and amateur geologist. He is the founder of Outdoor Aggregates, with the mission to create the first encyclopaedia for decorative aggregates. From natural stone through to decorative bark, these aggregates are critical to garden and landscape design, universally.

The problem: There isn't any place where all the different types of decorative landscaping materials and construction aggregates can be found, nor are the specifications of each type readily available. So, enriched by his extensive experience, and inspired by the timeless elegance and raw beauty of stone and rock, etched by nature's artistry over millennia, Outdoor Aggregates was born.