Concrete & Aircrete Blocks delivery in Antrim

Concrete & Aircrete Blocks we supply in Antrim

• Hollow and cellular blocksLighter dense blocks with voids, used for some garden and retaining walls.
• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• 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.

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.

In Northern Ireland building work follows the Building Regulations (Northern Ireland), with guidance in the Technical Booklets, and applications go to the council's building control team.

How much will you need?

A single-skin block wall in Antrim 7 m long and 2.1 m high is 14.7 m². At 10 blocks per square metre plus 5% you need 155 blocks, with about 0.21 tonnes of building sand and 2 bags of cement for the mortar at 1:4. Try the block calculator

Delivery to Antrim: 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. Deliveries to Northern Ireland include a sea crossing, so we quote each order individually.

• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
• In summer Antrim gets around 17h 18m of daylight, but early deliveries still beat the traffic and give the longest working day.

Your questions answered

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.

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.

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

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.

Do you deliver concrete blocks to trades and homeowners in Antrim?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.