1. What is a Patio Mortar Calculator UK?

Definition: This calculator estimates the number of mortar bags needed for UK patio paving based on area, bedding depth, mortar ratio, and bag yield.

Purpose: It helps homeowners and landscapers determine how much mortar is required for patio projects.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( M \) — Mortar volume (number of bags)
• \( A \) — Area to be paved (square meters)
• \( D \) — Bedding depth (millimeters converted to meters)
• \( R \) — Mortar ratio (typically 4:1 for patio work)
• \( Y \) — Yield per bag (cubic meters per bag)

Explanation: The area multiplied by depth gives volume, adjusted by the mortar ratio, then divided by bag yield to get number of bags needed.

3. Importance of Mortar Calculation

Details: Accurate mortar estimation ensures proper bedding for pavers, prevents material waste, and helps budget for materials.

4. Using the Calculator

Tips: Enter the patio area in m², bedding depth (25-50mm), mortar ratio (default 4), and bag yield (default 0.017 m³/bag). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the standard bedding depth for patios?
A: Typically 30-40mm for pedestrian areas, 50mm for driveways.

Q2: What mortar ratio should I use?
A: 4:1 (sand to cement) is standard for patio bedding mortar.

Q3: How do I measure my patio area?
A: Multiply length by width in meters. For irregular shapes, break into rectangles.

Q4: What's the typical yield per bag?
A: A standard 25kg cement bag yields about 0.017m³ when mixed.

Q5: Should I add extra for wastage?
A: Yes, add 5-10% to the calculated amount for spillage and adjustments.