What is Jointing Sand?

Jointing sand is a type of sand that is commonly used in the construction industry, specifically for filling the gaps between paving stones or bricks. It is a crucial component in creating a stable and durable surface for walkways, patios, and driveways. Jointing sand is typically made from fine sand particles that are specifically graded and washed to ensure uniformity and quality. It is designed to be swept into the joints between pavers or bricks, where it acts as a binding agent, preventing the stones from shifting or moving.

The Importance of Jointing Sand in Paving Projects

When it comes to paving projects, jointing sand plays a vital role in ensuring the longevity and stability of the finished surface. Without proper jointing sand, the gaps between the pavers or bricks can become susceptible to weed growth, erosion, and shifting. Jointing sand fills these gaps, creating a solid and cohesive surface that can withstand heavy foot traffic, vehicle loads, and various weather conditions.

Additionally, jointing sand helps to prevent water from seeping into the gaps between the pavers or bricks. This is important because water can cause the underlying base material to erode, leading to uneven surfaces and potential structural issues. By filling the joints with sand, water is effectively blocked from entering, preserving the integrity of the paved area.

The Process of Jointing Sand Application

Applying jointing sand is a relatively straightforward process that can be done by both professionals and DIY enthusiasts. Here are the general steps involved:

1. Preparation

Prior to applying jointing sand, it is essential to ensure that the pavers or bricks are properly installed and set in place. The surface should be clean, free of debris, and adequately compacted. Any loose or unstable stones should be repositioned or replaced before proceeding with the jointing sand application.

2. Sweeping

Once the surface is prepared, the jointing sand can be applied. Start by pouring the sand onto the paved area, ensuring that it covers all the joints. Use a broom or brush to sweep the sand into the gaps, making sure that it fills the joints completely. It is important to work the sand into the joints thoroughly to achieve optimal stability and prevent voids.

3. Compaction

After the sand has been swept into the joints, the next step is to compact it. This can be done using a plate compactor or a vibrating plate. The compaction process helps to settle the sand and ensures that it is tightly packed, minimizing the risk of shifting or erosion. It is important to follow the manufacturer’s instructions for the specific type of jointing sand being used.

4. Finishing

Once the sand has been compacted, excess sand can be removed from the surface using a broom or brush. This step helps to create a clean and polished appearance, enhancing the overall aesthetic of the paved area. It is important to remove any sand that is on top of the pavers or bricks, as it can interfere with the stability and functionality of the surface.

Maintenance and Care for Jointing Sand

Proper maintenance and care are essential for preserving the effectiveness and longevity of jointing sand. Here are some tips to keep in mind:

1. Regular Inspection

Periodically inspect the paved area to check for any signs of erosion, shifting, or weed growth. If any issues are detected, address them promptly to prevent further damage.

2. Weed Control

Apply weed control measures to prevent weed growth between the joints. This can include using weed barriers, applying herbicides, or manually removing weeds as they appear.

3. Reapplication

Over time, jointing sand may wear down or become dislodged. If this occurs, it is important to reapply sand to maintain the stability and functionality of the paved surface.


Jointing sand is a crucial component in the construction of paved surfaces. It provides stability, prevents weed growth, and protects against water damage. By understanding the importance of jointing sand and following proper application and maintenance techniques, you can ensure the longevity and durability of your paved areas.