Fence Calculator
Calculate posts, rails, pickets, and concrete for your fence project. Works for wood privacy fences, picket fences, and board-on-board styles.
🪵 Enter Your Fence Dimensions
8 ft is standard; use 6 ft for windy areas
How to Calculate Fence Materials
Our fence calculator helps you estimate posts, rails, pickets, and concrete for your wood fence project. Whether building a privacy fence, picket fence, or board-on-board style, accurate material calculations save time and money.
Fence Post Spacing
- 6 ft spacing: For tall fences (8 ft), windy areas, or heavy gates
- 8 ft spacing: Standard for most residential fences
- 10 ft spacing: For lightweight or decorative fences only
Rail Requirements
Fences under 5 ft typically use 2 horizontal rails. Fences 6 ft and taller should use 3 rails for stability. Rails can be 2x4s (lighter fences) or 2x6s (heavier pickets or windy areas).
Post Depth and Concrete
Fence posts should be buried at least 1/3 of their total length, with a minimum of 2 ft in the ground. Each post hole should be 3x the post width (12 inches for 4x4 posts) and filled with concrete for maximum stability.
Common Fence Styles
- Privacy fence: No gaps between pickets
- Board-on-board: Overlapping boards for privacy from both sides
- Shadowbox: Alternating boards on each side of rails
- Picket fence: 2-3 inch gaps between pickets