20mm - Dust Limestone

As one of the UK's leading Builders merchants, the Stone Zone are pleased to introduce their Trade range; a top quality range of building and landscaping aggregates that are great value and competitively priced. Our 20mm-Dust Limestone makes up our ever-expanding Trade range and is very popular.

20mm to Dust is a highly popular material in the Landscaping and Building world; predominantly used as sub-bases for new garden patios, garden sheds and underneath Artificial Grass and Decorative garden areas.

This naturally-derived product is made of a naturally-occurring stone in the UK, which is fairly soft in nature and can be quite brittle. This aggregate is a fine, graded limestone which goes right down to dust in terms of particles; having very similar properties to sand. 

Due to the nature of this aggregate, the sizes and colours can vary slightly; as some Limestone will be quarried in various places around the UK. For this reason, it isn't classed as a decorative garden product, but is perfect for the Trade. 

20mm Dust Limestone for Sub-Bases

The qualities of these Limestone aggregates are very similar to that of MOT Type 1; these building aggregates make for great mediums used for levelling areas out. 

When it comes to laying a shed, however you plan to sit the shed on the ground, you'll need a sturdy sub-base that contains permeable materials. This makes 20mm Limestone the perfect aggregate to use; the 20mm pieces of stone are great for the permeable side of the base, and the 'dust' is great for filling in small gaps, ready for a garden shed to be placed on.

Other sub-bases Limestone to Dust can be used for include hard landscaping features such as garden Paving and Artificial Grass. The applies to Paving as it does when it comes to adding a shed; a permeable, yet sturdy sub-base layer must be laid down first, to give it the best chances of standing the test of time. 

You can also use Limestone 20mm to Dust for sub-base applications such as pathways, driveways and Decorative Stone features. Laying a sub-base at a depth of at least 30mm is really important, especially when it comes to driveways, as the aggregates will inevitably compact over time under the weight of vehicles.

This product is quarried as a natural stone that is graded down to dust; for this reason, we wouldn't recommend using it for decorative applications such as garden borders or features. Limestone is also a very soft, natural stone, so while it is sturdy as a sub-base when laid to a certain depth, we wouldn't recommend solely laying it on your driveway, as the small piece of Limestone will break up over time and turn to dust.   

How to Buy Limestone 20mm-Dust

This Crushed Concrete can be collected for free at one of our depots in Wimborne, Bournemouth or Dorchester, or our Trade range Aggregates can be delivered nationally to anywhere in the UK.

You can use our Quantity Calculator to work out how much of these aggregates you need - simply enter the measurements of your garden, the depth at which you want to lay the stone and it will work out how much you need!

Available Pack Sizes

850kg bulk bags (approximately 0.6m³)

We can also deliver our soils as loose, tipped loads, as opposed to being in bags. Please call our friendly team on 01202 874207 if you require this service.

PLEASE NOTE: While every effort has been made to ensure our landscaping and building materials are free from contamination; there is always the chance that there may be small pieces of debris present. Please ensure you handle the sand with care when using it.  

Buy With Confidence

• Our 20mm-Dust Limestone can be purchased in bulk bags that weigh approx. 850kg and contain approx. 0.6m³
• Not sure how much you need? Use our quantity calculator and enter your garden width and length to find out how many bulk bags you need! 
• Please select the bag size you'd like to buy and add to your basket 
• Our Sand will either arrive on a hiab lorry that can be used to lift the stone onto your garden, or it will arrive on a pallet for kerbside delivery; depending on your address
• You can choose free collection from one of our Depots or fuss-free, home delivery.

A Service You Can Rely On

• Our reliable service offers prompt delivery to any area in the UK
• Stone Zone is a family-run business that has been well-established since 1998
• Our efficient customer advisors can help you with your purchase
• We pride ourselves on offering a range of affordable garden supplies 

Sample Soil is available in-store, please ask a customer advisor. 

A Delivery Service you can Rely on

You don't need to be there for delivery; if you're happy to do so, our delivery drivers can deliver bulk bags to your front garden without a signature.

Alternatively, our experienced drivers can operate their lorries to deliver bulk bags over fences at the front, side or back of your property, you will need to be present for this delivery type.   

Please let us know if there are any access difficulties to your road or property. If your property has very tight access and we need to use a small lorry, a surcharge of £30 + vat will apply.   

Any questions? Use our live chat to speak to an advisor, alternatively, you can fill out an enquiry form or call us on 01202 874207.