Construction Calculator - Framing and Woodwork

Wood Fence Calculator

Estimate wood fence posts, panels, or sections from total run length.

Reviewed: August 26, 2026

Calculate Wood Fence

For the Wood Fence Calculator, enter total run length, spacing, and extra allowance. It estimates regularly spaced stations along one run and rounds the allowance-adjusted result to a whole count; corners, gates, and end conditions need separate treatment.

Construction measuring tools arranged beside a residential building project

Formula and input notes

Repeated stations = ceil(ceil[run length ÷ spacing] + 1, then apply the entered allowance)

InputPractical note
SpacingThis is the Wood Fence Calculator layout value for spacing; confirm whether the drawing specifies clear or on-center spacing.
Wood Fence Calculator measurement plan showing Total run length feet, Spacing feet, Extra allowance percent

Worked wood fence example

Wood Fence Calculator example: A 82-ft run at 8-ft spacing gives ceil(82 ÷ 8) + 1 = 12 layout stations. With 5% allowance, the estimate rounds to 13.

Use the count as a baseline

Use the result as a post baseline, then count rails, boards or pickets, concrete, fasteners, caps, and preservative separately.

Posts, gates, and field conditions

Fence height, wind exposure, rail spans, post species and grade, soil, frost, gates, and board pattern affect the complete takeoff.

Questions specific to this calculation

What does one repeated station represent for wood fence?

Enter straight run length and planned post spacing. Add posts at ends, corners, gates, and abrupt grade changes from the site layout.