Board and Batten Siding Calculator

Calculate the materials needed for your board and batten siding project. Get instant estimates for boards, battens, and furring strips with visual diagrams and detailed breakdowns.

Calculate Materials

How to Calculate Board and Batten Siding

Board and batten siding is a traditional exterior siding style that combines wide boards with narrow battens to create a distinctive vertical pattern. This calculator helps you determine the materials needed for your board and batten siding project by considering wall dimensions and openings.

Board and Batten Calculation Formulas

The key formulas for calculating board and batten materials are:

\[ \text{Net Wall Area} = (\text{Wall Width} \times \text{Wall Height}) - \text{Total Opening Area} \]

\[ \text{Number of Boards} = \text{Ceiling}(\frac{\text{Wall Width}}{\text{Board Width} + \text{Batten Width}}) \]

\[ \text{Number of Battens} = \text{Number of Boards} - 1 \]

\[ \text{Furring Strips} = \text{Ceiling}(\frac{\text{Wall Width}}{2}) \times \text{Ceiling}(\frac{\text{Wall Height}}{2}) \]

Where:

  • Wall Width = Width of wall surface (feet)
  • Wall Height = Height of wall surface (feet)
  • Board Width = Width of vertical boards (inches)
  • Batten Width = Width of battens covering joints (inches)
  • Opening Area = Area of doors (21 sq ft each) and windows (15 sq ft each)

Calculation Steps

  1. Calculate total wall area
  2. Subtract openings to get net wall area
  3. Calculate number of boards needed
  4. Calculate number of battens
  5. Calculate furring strips needed

Example Calculation

Problem:

Calculate materials needed for a wall with:

  • Wall dimensions: 20 ft × 10 ft
  • 1 door and 2 windows
  • Board width: 8 inches
  • Batten width: 2 inches

Solution:

  1. Calculate total wall area:
    \[ 20 \text{ ft} \times 10 \text{ ft} = 200 \text{ sq ft} \]
  2. Calculate net wall area:
    \[ 200 - (1 \times 21 + 2 \times 15) = 149 \text{ sq ft} \]
  3. Calculate number of boards:
    \[ \text{Ceiling}(\frac{20 \times 12}{8 + 2}) = 24 \text{ boards} \]
  4. Calculate number of battens:
    \[ 24 - 1 = 23 \text{ battens} \]
  5. Calculate furring strips:
    \[ \text{Ceiling}(\frac{20}{2}) \times \text{Ceiling}(\frac{10}{2}) = 10 \times 5 = 50 \text{ strips} \]

Board and Batten Installation Diagram

Wall Width Wall Height

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