Arena Footing Materials: Sand, Rubber, and Maintenance

Footing is one of the most consequential decisions you make for your equestrian facility. Good footing protects horses from injury, lets riders work effectively, and holds up over years of use. Poor footing costs you in horse injuries, vet bills, and riders who take their horses elsewhere. Understanding what materials work and why helps you make better decisions whether you're installing a new arena or maintaining an existing one.

What Makes Good Footing

Good arena footing has four properties in balance:

Cushion: Absorbs the impact of hoofbeats to reduce concussion on joints and tendons. Too little cushion on a hard base increases injury risk. Too much cushion (deep, loose footing) strains tendons and exhausts horses quickly.

Stability: Footing that doesn't shift or compact under the horse allows it to push off predictably. Unstable footing that moves too much underfoot creates inconsistent traction and fatigue.

Traction: The surface needs to grip the hoof for push-off without gripping so firmly that the horse can't pivot or slide intentionally. The right amount of traction varies by discipline: reining horses need some slide; dressage horses need firm push-off.

Dust control: Excessive dust is a respiratory health issue for horses and riders and makes an arena unpleasant to use. Managing dust is an ongoing maintenance task, not a one-time fix.

Sand Types and Selection

Sand is the most common base material for equestrian arenas. Not all sand is equal, and the wrong sand can underperform or fail quickly.

Angular vs. round sand: Angular sand particles interlock when compacted, providing stability and traction. Round particles roll against each other, creating soft, unstable footing that tends to migrate to the rail. For most equestrian applications, angular or sub-angular sand is preferred.

Particle size: Medium-coarse sand (roughly 0.3 to 2 mm particle size) performs well for most disciplines. Very fine sand packs down hard or generates excessive dust. Coarse sand can be abrasive on hooves.

Silica content: High-silica sands are hard, durable, and drain well. Mason sand (high silica, medium grind) is a common choice for indoor and outdoor arenas.

Depth: Arena sand depth depends on what's underneath. On a compacted, well-draining base, 3 to 4 inches of sand works for most disciplines. Jumping arenas may benefit from 4 to 5 inches. Going deeper than that without a high-quality base often creates soft, unpredictable footing rather than better cushion.

When selecting sand, request a sample and have it analyzed for particle size distribution. A reputable footing supplier should be able to provide specifications. If possible, visit a facility using the same material before committing.

Rubber Additives

Rubber fiber or chip additives are blended into sand to improve cushion, reduce compaction, and help retain moisture. Recycled rubber from tires is the most common source.

Benefits of rubber additives:

• Reduces dust by helping the footing retain moisture longer
• Adds cushion without increasing depth significantly
• Helps maintain footing consistency between maintenances
• Reduces the tendency of sand to compact under heavy use

Rubber is typically blended at 10 to 15 percent by volume, though recommendations vary by product and discipline. Too much rubber creates inconsistent, unpredictable footing and can be problematic for horses that need firm push-off (dressage, jumping).

Rubber fiber (shredded into long strands) tends to integrate better with sand than rubber crumb (small chips), which can separate over time. Synthetic fiber additives (polypropylene or similar) serve a similar binding function.

The downside of rubber: it eventually works its way to the surface or migrates to the rail and needs to be reincorporated through dragging. Over several years, rubber content depletes and needs to be replenished.

Dust Control

Dust management is a practical requirement, not a luxury. Options include:

Watering: The most basic approach. A drag with a water tanker before use reduces dust significantly. In dry climates, arenas may need daily watering. The challenge is consistency: too little water and dust returns quickly; too much and footing becomes slippery.

Magnesium chloride: A hygroscopic salt that draws moisture from the air and holds it in the footing. Applied as a solution or in granular form, it reduces how often you need to water. Effective in humid climates; less so in very arid conditions. Can be corrosive to metal arena hardware over time.

Calcium chloride: Similar to magnesium chloride. Slightly more hygroscopic, works well in low-humidity environments. More expensive than magnesium chloride.

Polymer treatments: Water-holding polymer products are incorporated into footing and reduce moisture loss. These are higher cost but can significantly reduce watering frequency.

Wax-coated footing: Premium indoor arenas sometimes use sand coated with a paraffin wax blend. The wax holds footing together, nearly eliminates dust, and maintains consistent moisture. High upfront cost, but requires very little maintenance over time.

Footing Maintenance

Even well-designed footing degrades without regular maintenance. A grooming and dragging schedule should include:

• Before every use: Drag the arena to level the surface and break up compacted spots
• After heavy use: Check for ruts near the rail, compaction in the center, and buildup in corners
• Weekly: Deep drag or harrow to pull up compacted lower layers
• Monthly: Check footing depth in multiple locations; add material where low spots develop
• Annually: Full arena assessment, possible footing refresh or addition

The base below the footing matters as much as the surface material. A base that has settled unevenly, developed drainage problems, or cracked will degrade the performance of any footing on top of it.

See also: arena management, arena scheduling, barn maintenance scheduling