1. What is the Hardie Siding Coverage Calculator?

The Hardie Siding Coverage Calculator helps determine how many siding boards you need for your project based on the area to be covered and the coverage provided by each board.

2. How Does the Calculator Work?

The calculator uses a simple coverage formula:

Where:

• Area — Total square footage to be covered
• Board Coverage — Coverage provided by one board (standard HardiePlank® is 8.25 sqft per 12ft board)

Explanation: The calculation divides the total area by the coverage of each board to determine how many boards are needed.

3. Importance of Accurate Coverage Calculation

Details: Proper calculation ensures you purchase the right amount of materials, minimizing waste and preventing project delays due to material shortages.

4. Using the Calculator

Tips:

• Measure the total area accurately, accounting for all walls and gables
• Subtract areas not being sided (windows, doors)
• Standard HardiePlank® coverage is 8.25 sqft per 12ft board
• Add 10% extra for waste and cutting

5. Frequently Asked Questions (FAQ)

Q1: What's the standard coverage for HardiePlank®?
A: Standard 12ft boards cover approximately 8.25 sqft each (accounting for overlaps).

Q2: Should I add extra for waste?
A: Yes, it's recommended to add 10-15% extra to account for cutting waste and mistakes.

Q3: How do I calculate the area of a wall?
A: Multiply height by width for rectangular walls. For gables, use (base × height)/2.

Q4: Does this account for windows and doors?
A: No, you should subtract these areas from your total before using the calculator.

Q5: Is this calculator suitable for other siding materials?
A: Yes, but you'll need to know the specific coverage per board for your chosen material.