1. What is Polymeric Sand?

Polymeric sand is a mixture of fine sands combined with additives that form a binding agent when activated with water. It's used to fill the joints between pavers, creating a durable, weed-resistant surface that prevents insect infestation and washout.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Area} \) — Total paved area in square meters
• \( \text{Joint width} \) — Typically 3-10mm (0.003-0.01m)
• \( \text{Joint depth} \) — Typically 25-50mm (0.025-0.05m)
• \( 1600 \) — Density of polymeric sand (kg/m³)

Explanation: The formula calculates the volume of joints and multiplies by sand density to estimate weight needed.

3. Importance of Proper Sand Calculation

Details: Accurate calculation prevents over-purchasing and ensures you have enough material to complete your project without interruptions. Proper joint filling is crucial for paver stability and longevity.

4. Using the Calculator

Tips: Measure your paved area accurately. Typical joint widths are 3-10mm. Joint depth should be slightly less than paver thickness. Always round up to whole bags when purchasing.

5. Frequently Asked Questions (FAQ)

Q1: What's the typical joint width for pavers?
A: For concrete pavers, 3-5mm is common. For natural stone, 5-10mm is typical.

Q2: How many square meters does one bag cover?
A: An 18kg bag covers approximately 10-15m² for 50mm pavers with 5mm joints.

Q3: Should I account for waste?
A: Yes, add 5-10% extra to account for spillage and compaction during installation.

Q4: Can I use this for irregular shaped areas?
A: For irregular areas, break the space into regular shapes (squares, rectangles) and calculate each separately.

Q5: What if my pavers have different joint spacing?
A: Calculate each section with different joint spacing separately and sum the results.