Concrete & Aircrete Blocks for Barnet, delivered to site

Choosing from our concrete blocks range

• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• Hollow and cellular blocksLighter dense blocks with voids, used for some garden and retaining walls.
• Block paving and edgingsOn request alongside your sub-base and sand.
• Lightweight aggregate blocksLighter to handle with better thermal performance than dense blocks.

Quantities: a worked example

A single-skin block wall in Barnet 9 m long and 2.1 m high is 18.9 m². At 10 blocks per square metre plus 5% you need 199 blocks, with about 0.27 tonnes of building sand and 3 bags of cement for the mortar at 1:4. Try the block calculator

Choosing concrete blocks

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.

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.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Planning the drop in Barnet

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. Barnet is inside our standard mainland delivery area.

• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• If neighbours share the access, it helps to let them know a lorry is coming.

Questions about concrete blocks delivery in Barnet

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.

Are aircrete blocks strong enough for an extension?

Many aircrete blocks are designed for loadbearing walls, but grades differ. Check the strength your design calls for and the manufacturer's guidance on use below DPC.

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

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.

Is there a minimum order for delivery to Barnet?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.