Board-on-Board Fence Calculator
Use our Board-on-Board Fence Calculator to estimate materials and costs for your privacy fence project. This calculator provides accurate estimates for lumber, posts, rails, and hardware needed for overlapping board fence installation.
How Board-on-Board Fencing Works
Board-on-Board Design Benefits
- • Complete Privacy: Overlapping boards eliminate gaps and provide 100% privacy coverage
- • Wind Resistance: Overlapping design allows some air flow while maintaining privacy
- • Attractive from Both Sides: No "ugly side" - fence looks good from both property sides
- • Durability: More material provides additional strength and longevity
- • Weather Protection: Overlapping boards shed water more effectively
Construction Specifications
- • Board Overlap: Typically 0.5-2 inches between boards for complete coverage
- • Post Spacing: Standard 6-8 feet on center, maximum 10 feet for stability
- • Rail Configuration: Minimum 2 rails (top and bottom), 3 rails for fences over 6 feet
- • Post Depth: 1/3 of fence height plus 6 inches minimum (2 feet minimum)
- • Board Thickness: Typically 1 inch nominal thickness (3/4 inch actual)
Material Requirements
- • Fence Boards: Vertical boards cut to fence height with proper overlap
- • Posts: 4x4 treated lumber, length = fence height + 2-3 feet for burial
- • Rails: 2x4 or 2x6 treated lumber for horizontal support structure
- • Concrete: 2 bags of quick-set concrete per post for solid installation
- • Hardware: Galvanized screws or nails, post caps, and gate hardware if needed
Wood Type Considerations
- • Cedar: Naturally rot and insect resistant, attractive appearance, moderate cost
- • Pressure Treated Pine: Most economical option, chemically treated for ground contact
- • Redwood: Premium option with natural resistance and beautiful grain
- • Composite: Low maintenance but higher upfront cost, consistent appearance
Installation Tips
- • Maintain consistent overlap throughout the fence for uniform appearance
- • Stagger board joints between rails to prevent weak points
- • Use string line to ensure posts are straight and properly aligned
- • Allow for slight spacing at the bottom for drainage and expansion
- • Apply wood preservative or stain for enhanced weather protection
- • Check local building codes for height restrictions and setback requirements
Cite this page as:
Daniel, P. Board-on-Board Fence Calculator. Available at: https://constructioncalculators.com/board-on-board-fence-calculator/. Accessed: October 25, 2026.