1. What is Polymerized Sand?

Polymerized sand is a mixture of fine sand combined with additives that form a binding agent when activated with water. It's used to fill the joints between pavers, creating a durable, stable surface that resists erosion and weed growth.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Area \) — Total area of the paved surface in square feet
• \( Joint width \) — Width between pavers in inches
• \( Joint depth \) — Depth of the joint in inches
• 144 — Conversion factor (square inches to square feet)
• 100 — Standard sand density in pounds per cubic foot

Explanation: The formula calculates the volume of joint space and converts it to the weight of sand needed based on standard density.

3. Importance of Proper Sand Calculation

Details: Accurate calculation ensures you purchase the right amount of material, avoiding waste or project delays from insufficient supplies. Proper sand application prevents shifting pavers and maintains surface integrity.

4. Using the Calculator

Tips: Measure your project area accurately. Typical joint widths range from 1/8" to 1/2". Joint depth is usually equal to the paver thickness minus 1/2" to allow for proper compaction.

5. Frequently Asked Questions (FAQ)

Q1: How much extra sand should I buy?
A: We recommend adding 10-15% to account for settling, compaction, and spillage during installation.

Q2: Can I use this calculator for irregular patterns?
A: Yes, but measure the average joint width across different areas for best results.

Q3: Does temperature affect sand requirements?
A: No, but installation should occur between 32°F and 90°F for optimal polymer activation.

Q4: How often should polymeric sand be replaced?
A: Properly installed polymeric sand can last 10+ years before needing replacement.

Q5: Can I use this for both clay and concrete pavers?
A: Yes, the calculation works for all paver types, though joint sizes may vary by material.