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What to measure for a fence install

Linear feet is the headline; post count is what you actually pay for.

5 min read

Fencing quotes in linear feet, and linear feet is the wrong number to build a price from on its own. Posts are what you actually pay for — in material, in concrete, and in the hours it takes to dig.

MeasurementWhat it isWhat it drives
Linear feetTotal run of fence Panels or pickets, rails
Height4 ft, 6 ft, 8 ft Post length, picket length, concrete
CornersDirection changes Corner posts (heavier than line posts)
End postsTerminationsEnd posts, caps
GatesCount and width each Gate kit, hinges, latch, gate posts
TerrainFlat, sloped, rocky Labor, racking vs stepping
Post spacingUsually 6 or 8 ft Post count, concrete

Post count is a derived number, and it has a plus one

At 8-foot spacing, 200 feet of fence is 200 ÷ 8 = 25 — plus one, because a run needs a post at both ends. Twenty-six. Corners and gates add more, since each needs its own. Forget the plus one on every run of a big job and you are short several posts and a bag of concrete each.

Gates cost far more than the fence they replace

A 4-foot gate is not 4 feet of fence. It is two heavier posts set deeper, a frame, hinges, a latch, and the time to hang it so it still swings true in a year. A double drive gate more so. Count gates separately and price them separately — burying them in linear feet is how a job loses money.

Slope: rack it or step it

On a grade you either rack the fence to follow the ground or step it down in level sections. Racking suits pickets and looks continuous; stepping suits preassembled panels and leaves triangular gaps at the bottom. Both cost more labor than flat ground, and the customer has an opinion — so decide it at measure time, not on install day.

Two things to note that aren't measurements

Where the line is. A fence on the wrong side of a boundary is a fence you take down at your own cost. Note who confirmed it.

What's underground. Utility locates before digging, every time. It is a scheduling dependency, so it belongs on the job, not in someone's head.

ExteriorPro does this arithmetic for you

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