Bringing Stone to Life... Online Since 2000 And Now With Over 700 Products! Order Securely Online or Tel. 01889 580 660
4-8mm Leca® LWALeca® LWA as greenhouse bench top drainageLeca® LWA the natural choice for green roofsGenuine LECA® LWALECA® LWA, in stock, at our depot in Rugeley4-10mm Leca® LWA Packed for use as chimney backfill
Leca® LWA 4-10mm Lightweight Expanded Aggregate - Click & Collect
Product Code: 7890

3+ 6+ 
Price per pack£17.40£15.00£13.80


Total £17.40recalculate total
Inc VAT, but excluding delivery

LECA® LWA - Lightweight expanded clay aggregate graded 4 to 10mm. Suitable for green roofs, hydroponics, chimney lining backfill and non structural lightweight concrete. Supplied for collection in robust 50ltr packs for construction, project and trial purposes.

Pack Volume: - 50 ltrs (Approximately three times the volume of a pack of "normal" aggregates). Weight per pack approximately 15kg

Pack size: Approximately 800mm x 400mm x 150mm.

Granule Size: Approx. 4-10mm.

Density: LECA®LWA is a super-light-weight aggregate with a dry bulk density of approximately 280 kg/m3.

Water Saturated Density:
When saturated for at least 24 hours, 4-10mm LECA® LWA is likely to absorb approximately 30% by weight of water with a resultant bulk density in the order of 500kg/m3

Genuine and original premium brand LECA® LWA manufactured by Leca(Saint Gobain) and distributed prepacked throughout the UK by Specialist Aggregates.

Supplied for collection in robust 50ltr packs for construction, projects and trial purposes. ( 1m3 requires 20packs)

Expanded clay granules are made by firing selected clay in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay vaporise 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 good resistance to crushing.

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.

Application & Use:
Top quality clean general purpose expanded lightweight clay with a minimum of fines backed by the worldwide LECA®LWA brand. The product is a dark grey/brown colour and offered for use in situations where aesthetics are not a prime consideration, in particular:

Horticulture: As a substrate in hydroponics, and generally blended with growing media to improve drainage and provide insulation.
An effective application has also been identified for growing marginal pond plants.

Green Roofs: The web contains advice on many and often contradictory methods for producing green roofs. Nevertheless 4-10mm Leca® LWR provides the definitive base for lightweight soils. For bottom and peripheral drainage we would recommend the 10-20mm grade Leca® LWA.

Non-Structural lightweight concrete: Suitable for fake rocks, theatre props and lightweight repairs.

Inert Backfill: Especially for restricted areas, for instance backfill to chimney linings where the product's small size and spherical shape together with convenient and strong packaging allow for ease of placement.

Particle Size:
Sieve Size mm % Passing
14 100%
10 99%
8 81%
4.0 9%
0.25 1%
Chemical Composition:
Principal components typically:
Chloride 0.04%
Acid Soluable sulphate 0.5%

Moisture Content:
This product is generally supplied dry, however, please inform our office if this is a specific requirement for your application

Price Promise:
All prices shown include VAT - There are no hidden charges on checkout. This price option applies for personal collection from our Rugeley based depot (WS15 3HF) it does not include delivery.

Specify: 4-10mm Leca® LWA (50ltr Packs) Supplied by Specialist Aggregates.

Product Code: 7890

Orders placed for personal collection: You will be advised your collection reference by e-mail. For personal collection orders placed by telephone (01 889 580660) our staff will be able to provide an immediate collection reference.

Personal collection is from: Specialist Aggregates, Unit 5 Rydal Estate, Colton Road, Rugeley, Staffs WS15 3HF.

Collection Logistics: Aggregates will be supplied in easy to handle recyclable plastic packaging. Rocks and boulders will be supplied loose. Products will be loaded as appropriate by hand or using mechanical means into customer's vehicles.

Personal collection times: Monday to Friday 10.00 am to 12.30pm – 2.00 pm to 4.30 pm. Price quoted for this item relates to personal collection only. Extra-over charge for collection by customer arranged courier £15.60 per pack (inc VAT).

Require More Info?
Would A Sample Help?
Call Charlotte, Paul or Steve on
01889 580 660
Order Online Now or Telephone orders Welcome - 9.00am to 5.00pm Monday / Friday
Buy Direct
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 
Leca<sup>®</sup> LWA 4-10mm Lightweight Expanded Aggregate
Leca® LWA 4-10mm Lightweight Expanded Aggregate
6 Pack pallet
12 Pack Pallet
21 pack Pallet - One m3
30 Pack Pallet
Leca<sup>®</sup> LWA 4-10mm Lightweight Expanded Aggregate
Leca® LWA 4-10mm Lightweight Expanded Aggregate
Creative News

Leca® LWA provides an effective solution to under floor refurbishment.
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.
Top Products 
01.Leca® LWA 10-20mm Lightweight Expanded Clay Aggregate - Click & Collect
02.Pumice Gravel - Collect
03.Pumice Sand - Kiln Dried - Collect
04.LECA®LWA 10-16mm Lightweight Aggregate - Terracotta - Collect
05.Pumice - Horticultural Gravel - Collect
06.Leca® LWA 2-4mm Horticultural Grit - Lightweight Aggregate - Click & Collect
07.Pumice Cobbles - Collect
08.Pumice Crush - Collect
Our customers often viewed this product after searching for:
SEARCHClay Pebbles
SEARCHLeca Insulation Fill Price
SEARCHLightweight Aggregate
SEARCHLight Weight Aggregates