1. What is a Paving Mortar Calculator UK?

Definition: This calculator estimates the volume of mortar needed for UK paving projects based on area, bedding depth, mortar ratio, and yield per bag.

Purpose: It helps landscapers and DIYers determine how much mortar is required for laying paving stones in UK projects.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( M \) — Volume of mortar (m³)
• \( A \) — Paving area (m²)
• \( D \) — Bedding depth (mm, converted to meters in calculation)
• \( R \) — Mortar ratio (unitless)
• \( Y \) — Yield per bag (m³/bag)

Explanation: The area multiplied by depth (converted to meters) gives the volume, which is then adjusted by the mortar ratio and divided by the yield per bag.

3. Importance of Mortar Calculation

Details: Accurate mortar estimation ensures proper bedding for pavers, prevents material waste, and helps with project budgeting.

4. Using the Calculator

Tips: Enter the paving area in m², bedding depth in mm (typically 25-50mm), mortar ratio (default 4:1), and yield per bag (default 0.3m³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's a typical bedding depth for UK paving?
A: In the UK, 30-50mm is standard for pedestrian areas, while 50-100mm may be needed for driveways.

Q2: What mortar ratio should I use?
A: A 4:1 ratio (sand to cement) is common for most paving projects in the UK.

Q3: How do I find the yield per bag?
A: Check the manufacturer's specifications - typically around 0.3m³ per bag for standard mortar mixes.

Q4: Does this include jointing mortar?
A: No, this calculates bedding mortar only. You'll need additional mortar for pointing.

Q5: Should I add extra for waste?
A: Yes, consider adding 10-15% to the calculated volume to account for mixing losses and uneven surfaces.