1. What is the Decking Calculator?

The Decking Calculator UK estimates the number of decking boards needed for a project based on the area to cover and board size, including a 10% wastage factor.

2. How Does the Calculator Work?

The calculator uses the decking calculation formula:

Where:

• \( boards \) — Number of boards needed (dimensionless)
• \( area \) — Total area to cover (square meters)
• \( board\_area \) — Area of one board (square meters)
• 1.1 — 10% wastage factor

Explanation: The calculation divides the total area by the area of one board, then adds 10% to account for cutting waste and mistakes.

3. Importance of Accurate Calculation

Details: Accurate board calculation helps prevent material shortages during construction and minimizes excess purchases, saving time and money.

4. Using the Calculator

Tips: Measure your deck area carefully in square meters. Standard deck board sizes are typically 0.36m² (120mm × 3m), but check your specific board dimensions.

5. Frequently Asked Questions (FAQ)

Q1: Why include a 10% wastage factor?
A: The 10% accounts for cutting waste, mistakes, and future repairs. More complex designs may require higher wastage percentages.

Q2: What's the standard deck board size in the UK?
A: Common sizes are 120mm × 3m (0.36m²) or 140mm × 3.6m (0.504m²), but always check your specific product.

Q3: Should I round up the number of boards?
A: Yes, always round up to whole boards since you can't purchase partial boards. The calculator does this automatically.

Q4: How do I calculate my deck area?
A: Multiply length by width in meters. For irregular shapes, break into rectangles and sum the areas.

Q5: Does this include joists and other materials?
A: No, this only calculates deck boards. You'll need additional materials for framing, screws, and finishing.