What is Board and Batten?
Board and batten is a type of exterior siding (and sometimes interior wall treatment) consisting of wide boards placed vertically with narrow strips (battens) covering the joints between them. This style has been used for centuries, originating in barn construction, and remains popular today for its distinctive vertical aesthetic and weather-resistant properties.
The boards are typically 8-12 inches wide, while battens are usually 2-3 inches wide. A small gap (1/4" to 1/2") is left between boards to allow for wood expansion, and the battens cover these gaps to prevent water infiltration. Modern variations use fiber cement, engineered wood, or vinyl materials in addition to traditional solid wood.
Material Calculation
Common Board and Batten Materials
| Material | Cost per LF | Lifespan | Maintenance |
|---|---|---|---|
| Cedar | $2-5 | 20-40 years | Stain every 3-5 years |
| Pine (treated) | $1-3 | 15-25 years | Paint every 3-5 years |
| Fiber Cement | $3-6 | 30-50 years | Paint every 10-15 years |
| Engineered Wood | $2-4 | 20-30 years | Paint every 5-7 years |
| Vinyl | $3-7 | 20-40 years | Wash only |
Installation Tips
- Install a weather-resistant barrier (house wrap) before attaching boards.
- Nail boards at the center only to allow expansion; battens get nailed through the gaps between boards.
- Leave 1/4" to 1/2" gap between boards for thermal expansion.
- Use stainless steel or hot-dipped galvanized nails to prevent rust stains.
- Start at one corner and work across for consistent spacing.
Frequently Asked Questions
How wide should the gap between boards be?
A gap of 1/4" to 1/2" is standard for wood board and batten. This allows for seasonal wood expansion and contraction. The battens (typically 2-3" wide) cover these gaps while allowing the boards to move freely underneath.
Can I install board and batten horizontally?
While traditionally vertical, board and batten can be installed horizontally. However, horizontal installation requires more attention to water management, as horizontal joints can trap water. Z-flashing or proper overlapping is recommended for horizontal applications.
How much waste should I plan for?
Plan for 10% waste on straightforward walls. Increase to 15-20% for walls with many windows, doors, or irregular shapes that require more cutting. Always order extra to account for defective boards and future repairs.