Concrete & Aircrete Blocks delivered to Risca

Concrete & Aircrete Blocks available for Risca delivery

• Hollow and cellular blocksLighter dense blocks with voids, used for some garden and retaining walls.
• Trench and foundation blocksWide blocks laid in foundation trenches instead of lots of concrete.
• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• Lightweight aggregate blocksLighter to handle with better thermal performance than dense blocks.

Sizing your order

A single-skin block wall in Risca 10 m long and 2.4 m high is 24 m². At 10 blocks per square metre plus 5% you need 252 blocks, with about 0.35 tonnes of building sand and 4 bags of cement for the mortar at 1:4. Try the block calculator

Delivering concrete blocks in Risca

Blocks are banded on pallets and usually crane-offloaded where the vehicle and access allow; tell us the weight limit of any drive or the ground where pallets will sit. Risca is inside our standard mainland delivery area.

• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Getting the right concrete blocks

Handling heavy blocks

Health and safety guidance discourages laying very heavy blocks by hand for long periods. Lighter blocks or planning the lift can make a big difference on site.

Dense or aircrete?

Dense blocks are strong and good for sound separation but heavy; a 100 mm dense block can weigh around 20 kg. Aircrete blocks are much lighter and insulate better, which helps with energy targets, but need the right fixings.

Wales has its own Approved Documents, including its own Part L for energy efficiency, and building control is handled by the local authority or a registered approver.

Ordering concrete blocks for Risca: FAQs

Can I add other materials to my Risca delivery?

Yes. Put everything on one list, from concrete blocks to fixings and PPE, and we will price it as one delivery where the products can travel together.

How much mortar for blockwork?

Roughly 0.008 to 0.01 cubic metres of mortar per square metre of 100 mm blockwork, allowing for waste. Use our block calculator for sand and cement quantities.

What is the difference between 3.6 and 7.3 N/mm² blocks?

The number is the compressive strength. 7.3 N/mm² blocks carry more load and are often specified below ground or for heavily loaded walls; 3.6 N/mm² is common for upper storeys and partitions. Follow your drawings.

Do you deliver concrete blocks to Risca?

Yes. We deliver across Risca, including CF83, NP44, NP10, NP20. Risca is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.