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Fence Calculator
Posts and boards from run length, spacing and board width.
Open interactive calculatorHow to use
Fence materials from length, post spacing and height.
Formula
posts = floor(L/spacing)+1; boards = ceil(L/board)
FAQ
Is this Fence calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Fence materials from length, post spacing and height.
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