Order concrete blocks for delivery in Caernarfon

Concrete & Aircrete Blocks we supply in Caernarfon

• 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.
• Block paving and edgingsOn request alongside your sub-base and sand.
• Dense concrete blocksHeavy, strong blocks for loadbearing walls, below ground and good sound separation.

Delivery to Caernarfon: what helps

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. Caernarfon is inside our standard mainland delivery area.

• Clear a level area for pallets, ideally on boards, so materials stay out of standing water.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• With roughly 7h 32m of daylight in Caernarfon around the shortest day, morning deliveries leave more working light for the job.

Quantities: a worked example

A single-skin block wall in Caernarfon 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

Things to check before you order

What strength do I need?

Most houses use 3.6 N/mm² or 7.3 N/mm² blocks. Your structural design, your building control officer or the block manufacturer's guidance sets the grade; tell us what is specified and we will match it.

Thickness

100 mm is the common inner-leaf thickness. Wider blocks (140, 190, 215 mm) are used for separating walls, single-skin garage walls and foundations.

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.

Your questions answered

Do you deliver concrete blocks to Caernarfon?

Yes. We deliver across Caernarfon, including LL55, LL54. Caernarfon is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

Can you deliver concrete blocks to a site with restricted access in Caernarfon?

Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.

How many blocks per square metre?

Standard 440 × 215 mm blocks with 10 mm joints lay at about 10 blocks per square metre of wall. Add around 5 percent for cuts.

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.