Last Modified: January 26, 2024

White Limestone Gravel

Economical and Durable All-Rounder

Limestone gravel close up

By Ben Parrot - Landscape Gardener & Amateur Geologist

Classification:

Stone landscaping material and construction aggregate

Geological name(s):

Calcium carbonate

Other Name(s):

Limestone gravel, gravel limestone, limestone aggregates, crushed limestone gravel, small limestone gravel, aggregate limestone

Overview

Welcome to the only encyclopaedia for decorative aggregates and landscaping materials. White limestone gravel, which is also commonly known as limestone gravel, is a highly versatile and cost-effective aggregate that is frequently used in the construction and building industry. It is particularly well-suited for sub-base, pipe bedding and infill applications due to its excellent drainage properties. Although it is not as commonly used as a decorative gravel, it represents a great value option for building attractive and durable driveways and paths.

This is a comprehensive encyclopaedia listing about white limestone 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.

White Limestone Gravel Specifications

material

colour

shape

sizes

fall safety

price

Limestone

6-40mm

durability

fish friendly

eco friendly

degradability

ph

diy friendly

Non-degradable

Alkaline

Material

Limestone

Colour

White with shades of yellow or grey

Shape

Angular

Close up of white lime stones

Size Range

6-40mm (0.25-1.6")

White limestone gravel 10mm, white limestone gravel 14mm, 10mm limestone aggregate, 20mm limestone aggregates

Fall Safety

Unsuitable for play surfaces

Price

Economical

Durability

High

Fish Friendly

No

White limestone gravel close up

Eco-friendly

Yes

Degradability

Non-degradable

pH

Alkaline

DIY-Friendly

Yes

White limestone garden path

Benefits

White limestone gravel has earned a strong reputation in garden and landscape design due to its affordability and practical advantages. Limestone gravel offers texture and contrast, enhanced drainage and suppression of weed growth when used as ground cover.

Another compelling aspect of limestone is its ability to naturally adjust soil pH and its superior compaction properties, making it an excellent choice for driveways and heavily-trafficked garden paths.

  • Inhibits weeds
  • Improves drainage
  • Hard-wearing
  • Eco-friendly, sustainable
  • Low-maintenance
  • Moisture retention
  • Versatile all-rounder
  • pH alkaline
  • Transform space fast
  • Unsafe for aquatic life
  • Pipe bedding
  • Easy to lay

Applications

Limestone gravel is a commonly used solution for weed suppression, sub-base compaction and drainage in landscaping design. These qualities make it very well-suited to paths and driveways. It is also a great ingredient to add to high-strength concrete mixtures due to its durability and natural properties. These benefits apply to most applications where limestone chippings are used, although the list of potential uses is almost limitless. For more information on any of the listed applications, simply click on the hyperlinked item.

White limestone gravel path

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 white limestone gravel include:

  • Base for terrace, patios or outdoor seating areas
  • Sub base layers
White chips under garden leaves 1

Unsuitable For

The following list represents the kinds of applications that white limestone gravel may not be suitable for:

  1. 1
    Aquascaping due to the alkaline effect on water pH posing harm to aquatic life.
  2. 2
    High moisture areas like pond linings due to alkaline nature.
  3. 3
    As an alkaline agent, they are unsuitable for acidic soil gardens, and as a general rule, they are not suitable for use as a ground cover around plants and trees unless they are suited to alkaline soils.
  4. 4
    Some experts say that limestone chippings are unsuitable for french drains because they deteriorate and pack down like a sub base. 
  5. 5
    Play surfaces due to the unforgiving nature of the gravel in the event of a fall.

Similar Alternatives to White Limestone Gravel

The following is a list of decorative aggregates which are alternatives to white limestone 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.

Name

Colours

Material

Size

Shape

Availability

Price

buff, white

10-20mm (0.4-0.8")

angular

UK, USA, EU

pink, blue, grey

Marble

6-20mm (0.4-2")

angular

UK, USA, EU

pale yellow

5-20mm (0.2-0.8")

angular

UK, USA

buff

Limestone

20mm (0.8")

angular

UK, USA, EU

golden, brown

Flint

10-20mm (0.4-0.8")

rounded

UK, USA

white

Marble

10-20mm (0.4-0.8")

angular

UK, USA, EU

Under £80

£80-£120

£120-£150

£150-£200

£200-£300

£300+

Maintenance

Cleaning garden gravel

White limestone gravel are generally low maintenance, especially when a heavy duty membrane is installed underneath to suppress weeds, with most work limited to raking and the occasional removal of debris. It is recommended to occasionally power wash the product in order to maintain its original colour and prevent the buildup of algae or moss. Natural quarry materials may also have dust which should be washed off with water during installation. For areas with heavy foot traffic, such as paths or footpaths, replenishing the chippings may be necessary over time to maintain depth and coverage.

For more on how to clean gravel, read our article: how to clean garden stones.

Purchasing Tips

Limestone boulders for rockery

When purchasing white limestone 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, white limestone gravel 20mm is typically used for driveways, while smaller white limestone gravel 6mm - 10mm is better suited to footpaths.

Our gravel calculator will give you a quick and unbiased estimate for your project needs just by taking a few measurements of the space. It is one of the best and easiest ways to order the right amount and helps avoid shortfalls or over-spending. Purchasing a white limestone gravel 20mm bulk bag or ordering in loose loads can offer better value than purchasing in smaller quantities. Therefore, calculating accurately can save both time and money. It is also important to consider the delivery aspects, including vehicle access to the site. Additionally, you should check stock availability and factor in VAT and transportation costs if applicable.

FAQs

What is 20mm to dust limestone?

20mm to dust limestone refers to limestone chippings that have been crushed to a size of 20mm but also include fine particles, essentially 'dust'.

What is 10mm limestone used for?

10mm limestone is mainly used for garden footpaths, as a condensate soakaway and as a sub-base for different features, such as laying artificial grass.

Does Cotswold stone go green?

Cotswold stone can develop a greenish tinge due to algae or moss, especially in damp, shaded areas.

How much Cotswold chippings do I need?

Coverage depends on depth; approximately 20kg per square metre at 40mm depth.

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.