Concrete & Aircrete Blocks delivered to Witham

Our concrete blocks range for Witham jobs

• Aircrete (aerated) blocksVery light, easy to cut and good insulators; check the strength grade for loadbearing work.
• 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.

Working out quantities for your Witham job

A single-skin block wall in Witham 7 m long and 2.4 m high is 16.8 m². At 10 blocks per square metre plus 5% you need 177 blocks, with about 0.24 tonnes of building sand and 3 bags of cement for the mortar at 1:4. Try the block calculator

Before you order concrete blocks

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.

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.

Delivery to Witham: 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. Witham is inside our standard mainland delivery area.

• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.
• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.

Ordering concrete blocks for Witham: FAQs

Is there a minimum order for delivery to Witham?

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.

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.

How soon can concrete blocks be delivered in Witham?

We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.