Fence Material Calculator
Result
Fence Material Calculator Calculate the lumber quantities for building a wood privacy fence including posts, rails, and pickets. — free online calculator.
Formula
- Fence Material Calculator calculates its result from Fence Length, Fence Height, Post Spacing. It uses the formula Posts = length/spacing + 1; Rails = bays × rails per bay; Pickets = length×12/6. Change any input to recalculate the result instantly.
- The main inputs are Fence Length, Fence Height, Post Spacing. Enter them in the units and format shown in the calculator.
- Keep measurements and project assumptions consistent before comparing or combining values.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Fence Material
- Fence Length: 100
- Fence Height: 6
- Post Spacing: 8
For 100 ft length, 6 ft height, 8 ft post spacing: 13 sections, 14 posts, 39 rails (3 per section), 210 pickets (5% allowance).
Sample result: Calculating…
Frequently asked questions
What does the Fence Material calculate?
Fence Material Calculator Calculate the lumber quantities for building a wood privacy fence including posts, rails, and pickets. — free online calculator.
Which values should I enter?
Enter Fence Length, Fence Height, Post Spacing using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Sections = ceil(fence length / post spacing); posts = sections + 1; rails = sections × (3 for heights >= 6 ft, otherwise 2); 6-inch-wide pickets with 5% allowance = ceil(ceil(length × 12 / 6) × 1.05). This is a simplified lumber estimate, not a structural design..
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.