The Ins and Outs of Silica Sand for Equestrian Horse Arenas

Maintaining or even constructing a high-quality horse arena, can be a challenging exercise and the type of sand used is of paramount importance. 

One of the most commonly utilised materials is silica sand, and understanding its specific properties and applications can make all the difference in creating a safe, durable, and comfortable surface for your equine athletes.

Silica Sand Composition and Sizing

Silica sand, also known as quartz sand, is typically composed of 95-99% silicon dioxide (SiO2). Our Sand here at Handelstad, supplied from deposits in the Limpopo province of South Africa, boasts around the 99% mark, making it ideal for the purpose. 

Good silica sand for a horse arena should have a particle size range of 0.5-1.5 millimetres in diameter, which is considered a medium to coarse grain. This fineness provides the optimal balance between cushioning and traction, ensuring a surface that is both forgiving and secure for your horses.

Percentage of Silica Sand

The recommended silica sand composition for a horse arena typically ranges from 60-80% of the overall surface material. This high percentage ensures a stable, well-draining base that can effectively support the weight and movement of horses. The remaining 20-40% of the arena surface is often composed of other materials, such as rubber or organic fibres, which help to enhance the overall performance and safety characteristics.

Arena Placement and Drainage

Silica sand is commonly used as both the base layer and the top dressing for an equestrian arena. The base layer, which can be 4-8 inches deep, provides a stable foundation that allows for proper drainage. The top dressing, typically 1-2 inches thick, offers the final touch of cushioning and traction.

Proper drainage is essential for any horse arena, as standing water can lead to issues such as compaction, poor footing, and even health concerns for the horses. The arena should be constructed with a slight slope (1-2%) to facilitate the removal of excess moisture, and the silica sand should be paired with a well-designed drainage system to ensure the surface remains dry and consistent.

Colour and Aesthetic Considerations

While the colour of the silica sand is not a critical factor in its performance, some horse owners and facility managers may have aesthetic preferences. Natural tan or beige sands are a common choice, as they provide a clean, classic look. However, there are also speciality silica sands available in a variety of hues, such as red or grey, which can be used to create a unique and visually appealing arena.

Handelstad sends free samples in the Republic of South Africa, and, in the case of bulk shipments for export, a sample can be arranged for international clients as well. 

Best Practices for Laying Silica Sand

When installing a silica sand-based arena, it’s essential to follow best practices to ensure a long-lasting, high-quality surface. This includes proper grading and compaction of the base layer, as well as even distribution and levelling of the top dressing. Regular maintenance, such as harrowing and topping up the sand as needed, is also crucial to maintaining the optimal performance of the arena.

How often should the silica sand in an equestrian arena be maintained and replenished?

The maintenance and replenishment schedule for the silica sand in an equestrian arena can vary depending on several factors, but here are some general guidelines:

  1. Routine Maintenance:
  • Harrowing or dragging the arena surface should be done regularly, at least 2-3 times per week during heavy use. This helps to keep the sand level, break up any compaction, and redistribute the material evenly.
  • Watering the arena, as needed, can help to prevent excessive drying and dust buildup.
  1. Topping Up the Sand:
  • The top dressing of silica sand will gradually work its way into the underlying layers or become displaced over time, especially with frequent use.
  • Most arena experts recommend topping up the sand every 6-12 months, adding 1-2 inches to maintain the desired depth and performance characteristics.
  1. Full Resurfacing:
  • Depending on the level of use and the arena’s construction, the entire silica sand layer may need to be refreshed every 3-5 years.
  • This involves removing the existing sand, grading and compacting the base, and then reinstalling a new 4-8 inch layer of silica sand.

The frequency of maintenance and replenishment can also be influenced by factors such as:

  • Intensity of use (e.g., high-traffic competition arenas vs. lower-use boarding facilities)
  • Environmental conditions (e.g., weather, climate, drainage)
  • Quality and depth of the initial silica sand installation
  • Presence of other arena surface materials (e.g., rubber, fiber, etc.)

By closely monitoring the arena’s condition and adhering to a regular maintenance schedule, equestrian facility managers can ensure the silica sand remains in optimal condition, providing a safe and consistent surface for their horses to train and compete on.

How can I ensure the silica sand in my arena provides consistent footing and traction for horses?

Ensuring consistent footing and traction in an equestrian arena with silica sand requires a multi-faceted approach. Here are some key strategies to consider:

  1. Proper Sand Composition and Sizing:
  • As mentioned earlier, the ideal silica sand for an arena should have a particle size range of 0.5-1.5 millimeters in diameter.
  • This medium to coarse grain size provides the right balance of cushioning and traction.
  • Ensure the sand is clean, free of debris, and composed of at least 95-99% silicon dioxide (SiO2).
  1. Appropriate Sand Depth:
  • The recommended depth for the silica sand top dressing is typically 1-2 inches.
  • This depth allows the sand to provide sufficient cushioning and traction without becoming too deep and unstable.
  • Regularly check the depth and top up the sand as needed to maintain the optimal level.
  1. Consistent Grooming and Harrowing:
  • Regularly grooming and harrowing the arena surface helps to keep the silica sand evenly distributed and prevent compaction.
  • This should be done 2-3 times per week during heavy use to break up any uneven areas or hard spots.
  • Proper grooming techniques, such as using a tine harrow or arena rake, can help to maintain a consistent, level surface.
  1. Moisture Management:
  • Proper drainage and moisture control are crucial for maintaining a consistent, high-traction arena surface.
  • Ensure the arena has a sufficient slope (1-2%) to allow for proper drainage and prevent standing water.
  • Supplemental watering may be necessary during dry periods to maintain the optimal moisture content in the sand.
  1. Ongoing Monitoring and Adjustments:
  • Regularly inspect the arena surface and observe how horses are moving on it.
  • Look for signs of uneven wear, compaction, or other issues that may affect traction and footing.
  • Be prepared to make adjustments, such as adding more sand, re-grooming, or adjusting the moisture levels, as needed to maintain consistent performance.

Following these practices for silica sand composition, depth, grooming, and moisture management, you can help ensure your equestrian arena provides safe, consistent footing and traction for your horses, whether they are training, competing, or simply enjoying leisurely rides.

All in all, these are the key properties and applications of silica sand in equestrian arenas, horse owners and facility managers can make informed decisions to create a safe, comfortable, and durable surface for their equine partners to thrive.

Contact Us today for a quotation and/or sample of our high-quality silica sand.