SK Trade, sktrade.co.uk

Building Materials

Concrete & Aircrete Blocks delivery in Cardiff

Concrete blocks are large masonry units, normally 440 × 215 mm on face, that lay at about 10 blocks per square metre; they come as dense aggregate, lightweight aggregate or aircrete (aerated) blocks.

SK Trade is a builders' merchant delivering concrete blocks into Cardiff, priced to your postcode and confirmed in writing.

Pallets of grey dense concrete blocks and pale aircrete blocks beside a blockwork wall

Your Cardiff delivery

How it arrives
Banded pallets, usually crane offload
Postcode districts
CF10, CF11, CF24
Nearby (straight line)
Whitchurch (3 mi), Penarth (3 mi), Rhiwbina (4 mi)
Delivery
Standard mainland delivery
Daylight
About 7h 50m on the shortest day
Delivering to
Cardiff, South Glamorgan

Concrete & Aircrete Blocks we supply in Cardiff

  • Block paving and edgingsOn request alongside your sub-base and sand.
  • 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.
  • Trench and foundation blocksWide blocks laid in foundation trenches instead of lots of concrete.
  • Dense concrete blocksHeavy, strong blocks for loadbearing walls, below ground and good sound separation.

Estimating your concrete blocks

A single-skin block wall in Cardiff 6 m long and 2.1 m high is 12.6 m². At 10 blocks per square metre plus 5% you need 133 blocks, with about 0.18 tonnes of building sand and 2 bags of cement for the mortar at 1:4. Try the block calculator

Planning the drop in Cardiff

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. Cardiff is inside our standard mainland delivery area.

  • On busy streets in Cardiff, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
  • With roughly 7h 50m of daylight in Cardiff around the shortest day, morning deliveries leave more working light for the job.
  • Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.

Before you order 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.

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.

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.

Concrete & Aircrete Blocks questions

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

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 on a pallet?

It varies with the block size and maker. We confirm the pallet quantity with your price.

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 Cardiff?

Yes. We deliver across Cardiff, including CF10, CF11, CF24. Cardiff is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

Send your list, get a delivered price

Tell us what you need and where it is going. We check the quantities and come back with a delivered price before you commit.

CallGet a price