A yard of rock salt weighs approximately 2,400-2,800 pounds (1.2-1.4 tons).
Rock salt (halite) typically weighs 1.2-1.4 tons per cubic yard, depending on moisture content and grain size. This equals 2,400-2,800 lbs or 1,088-1,270 kg. Weight varies slightly due to compaction and impurities, but most bulk suppliers use 2,600 lbs as a standard estimate.
Key Factors Affecting Weight
- Grain size: Coarse salt weighs slightly less per yard than fine granules due to air gaps.
- Moisture: Damp salt adds weight (up to 5% more).
- Compaction: Loosely piled salt weighs less than densely packed salt.
- Impurities: Clay or minerals may increase weight marginally.
Weight Comparison: Rock Salt vs. Other Deicing Materials
| Material | Weight per Cubic Yard | Melting Temp Range | Cost per Ton (Est.) |
|---|---|---|---|
| Rock Salt (Halite) | 2,400-2,800 lbs | Down to 20°F (-7°C) | $50-$100 |
| Calcium Chloride Pellets | 1,800-2,200 lbs | Down to -25°F (-32°C) | $200-$400 |
| Magnesium Chloride Flakes | 1,500-1,900 lbs | Down to -10°F (-23°C) | $150-$300 |
| Sand (for traction) | 2,500-3,000 lbs | No melting action | $10-$30 |
How to Calculate Weight for Your Needs
- Determine volume: Measure length × width × depth (in yards) of the area to fill.
- Use average weight: Multiply cubic yards by 2,600 lbs for a standard estimate.
- Adjust for conditions:
- Add 5% if salt is damp.
- Subtract 3-5% for coarse, uncompacted salt.
Common Quantities & Their Weights
- 1/2 yard: ~1,200-1,400 lbs (0.6-0.7 tons)
- 1 ton (2,000 lbs): ~0.75-0.85 cubic yards
- 5-gallon bucket: ~50-60 lbs (varies by fill level)
- Pallet (50 x 50-lb bags): 2,500 lbs (~1 cubic yard)
Safety & Handling Tips
- Use a wheelbarrow or skid steer to move bulk salt; 1 yard exceeds safe manual lifting limits.
- Store in a dry, covered area to prevent clumping and weight increase from moisture.
- Wear gloves and eye protection-salt can irritate skin and eyes.
- Avoid spilling on plants or metal surfaces to prevent corrosion/damage.