Bringing Stone to Life Online Since 2000 And Now With Over 700 Products! Order Securely Online or Tel. 01889 580 660
  • LecaŽ 10-20mm Lightweight Expanded Clay Aggregate
  • LecaŽ 10-20mm Lightweight Expanded Clay Aggregate
LecaŽ 10-20mm Lightweight Expanded Clay Aggregate
Product Code: 7892

25ltr: Ł32.40 Inc VAT and delivery


25ltr: Ł32.40 Inc VAT and delivery
Product Information

Pack Size: 25 ltrs - Approximately 8kg

Granule Size: Approx. 10-20mm.

Density: LECAŽ is a super-lightweight aggregate with a dry bulk density of approximately 280 kg/m3.

Typical Moisture Content:
When saturated for at least 24 hours, 10-20mm LECAŽ is likely to absorb approximately 30% by weight of water with a resultant bulk density in the order of 500kg/m Our products are generally supplied in a dry state, however, please specify at the point of ordering if this is important to your application.

This is a genuine and original premium LECAŽ product manufactured by Saint Gobain and distributed in the UK by Specialist Aggregates. This 25ltr pack is offered for small projects, trial and research purposes.
Expanded clay granules are made by pelletising and firing selected clays in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay burn off forcing the pellets to expand and become honeycombed while the outside surface of each granule fuses to give a ceramic shell. The resulting granules are lightweight, porous, and have a high resistance to crushing.

Application & Use:
Top quality clean general purpose expanded lightweight clay with a minimum of fines. The product is a dark brown colour and offered for use in situations where aesthetics are not a prime consideration, in particular:

As a substrate in hydroculture / hydroponics, and blended with other growing media to improve drainage and provide insulation.

Green Roofs: The web contains advice on many and often contradictory methods for producing green roofs. Nevertheless our 10-20mm LecaŽ provides the definitive product for bottom and peripheral drainage. To create lightweight soils we would recommend our 4-10mm grade LecaŽ.

As a mass backfill to structures, especially for situations with restricted access, and for providing lightweight fill to planters.

Being a natural product expanded clay aggregate contains no harmful substances, it is inert with neutral pH, The granules are resistant to frost and chemicals, and will not break down in water. They are also non-combustible and have excellent sound and thermal insulation properties, further they can be used with cement to make a lightweight concrete mix suitable for fake rocks, theatre props and lightweight repairs.

Particle Size:
Sieve Size mm % Passing
20 100%
14 74%
10 17%
8.0 3%
0.25 1%
Chemical Composition:
Principal components typically:
Chloride 0.04%
Acid Soluable sulphate 0.5%

Compaction: Typically the product is likely to compact by 8-12% from its delivered un-compacted state to a long term compacted state above the water table.

Specify: 10-20mm Leca from Specialist Aggregates.

Product Code: 7892

Articles relating to LecaŽ Products:
LecaŽ provides an effective solution to under floor refurbishment.
Black Friday Turns to Gold - Coloured LecaŽ Heads for the High Street
Specialist Aggregates compare the properties of LecaŽ
Baa Baa Black Sheep have you any LecaŽ
Buy Direct

Leca® 10-20mm Wiki

Leca® 10-20mm Wiki

Close Volume Calculator
Leca Calculator

Specialist Aggregates Ltd Length Calculator The length of the area you're looking to fill.

Specialist Aggregates Ltd Width Calculator The width of the area you're looking to cover or fill.

Specialist Aggregates Ltd Depth Calculator The depth of the area.

Length of Area (L)
Width of Area (W)
Depth of Area (D)
Product Type
Specialist Aggregates Ltd Shopping BasketBasket 
0 items
Alternative Volumes 
LecaŽ 10-20mm Lightweight Expanded Clay Aggregate
LecaŽ 10-20mm Lightweight Expanded Clay Aggregate
Multi Pack
LecaŽ 10-20mm Lightweight Expanded Clay Aggregate - Collect
LecaŽ 10-20mm Lightweight Expanded Clay Aggregate - Collect
50ltr pack
Bridport Black Gravel
Product Key 
Individual Packs Individual Packs
Order and Deliver

See products for pack sizes.
Pallet Deliveries Multi Packs
Order and Deliver

Convieniently packed for ease of movement. See products for pack and pallet sizes.
Bulk Bag Deliveries Bulk Bags
Order and Deliver

Selected products available bulk packed for contractors. See products for specific informaiton.
Rockery Stone Deliveries Rockery Stone Deliveries
Order and Deliver

Caged stone delivery, packing may vary.
Bulk Loads Order For Collection
Order for collection from a warehouse. See products for pack sizes and collection details.
Where are Big Bags? 
Bulk Loads Click here to find out more
Top Products 
01.Volcanic Lava Rock - BBQ
Our customers often viewed this product after searching for:
SEARCHClay Pebbles
SEARCHLeca Insulation Fill Price
SEARCHMaxit Lightweight Fill
SEARCHClay Balls