How to Lay Block Paving

How to Lay Block Paving

How to Lay Monoblock Paving

Rectangular Monoblocks are the original and fundamental paving solution that is fantastic value for money. Our handy guide on how to lay block paving will provide you with all the information you will require to install block paving in your property.


Laird Rectangular Monoblock PavingBefore You Begin

Draw a simple sketch of your home and garden, detailing the area you would like to pave. Once you are satisfied with your plan, mark out the area in your garden using string.

Excavation and Site Preparation

Depending on the area you intend to pave, dig using a shovel or use a mini excavator, as this will save you time and effort.

Dig out the area to at least 150mm below the Damp Proof Course in the brick of an adjoining building.

Edge Restraints

Edge restraints are used to frame the driveway. Use a concrete mix of 1-part cement to 6-parts ballast to create a 100mm thick concrete foundation. The kerb unit will sit on top of this at the required level, which should be done using a string line and spirit level. Next mortar the kerbs to the foundations using a rubber mallet and hand-trowel and again using the concrete, form a haunch at least half the height of a block.


Lay and spread a layer of Type 1 inside of the edge restraints in layers of 50mm until you have reached the desired level. Use a vibrating plate to level and compact each layer. The finished sub-base should be at least 100mm after compaction. The vibrating plate should be passed over the area 7 times to ensure the base is compact.

Lairds Rectangular Monoblock PavingLaying Sand and Screeding

Apply a layer of slightly damp sharp sand to a depth of 50mm and compact using a vibrating plate.

The second layer of sharp sand should be applied to a level of 20mm. This layer of sand must be levelled to the correct falls using a string line, screeding rail and straight edge.


Laying Paving Blocks

Always start at the bottom of a slope, preferably at a corner or a straight edge. Blocks should be placed on top of the laying course, ensuring they are 10-15 mm above the desired finished level.

Continue laying blocks, selecting blocks from different packs to ensure that colour banding does not occur. Once all blocks are in position you will need to cut several blocks to fill in any gaps. We recommend splitting blocks using a Block Splitter or Diamond Disc Cutter. Where possible, avoid cutting a block to less than a third of its original size.


Once the blocks are laid sweep the driveway to ensure no debris from the blocks has been left on the drive. Apply kiln dried sand and brush across the entire drive, ensuring that the sand falls in between the joints.

Once the kiln dried sand has been applied, use a vibrating plate to compact the drive. We recommended using a neoprene faced or rubber soled plate to avoid scuffing the blocks. After compacting, brush a layer of kiln dried sand over the drive and compact again. Repeat this step until the joints are full of sand.

Laird Rectangular Monoblock Paving

BHC Merchants stock Lairds Rectangular Block Paving in a range of vibrant, rich colours.Laird Rectangular Monoblocks

Enquire at BHC Merchants today:

Telephone: 01555 840026


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