Spike's Calculators


Picket, Pale Fence Materials (Metric) Calculator

A picket fence is basically the same as a pale fence but you will notice the difference when you sit on them. Pickets are pointy boards and pales are usually rounded or flat on top.

This calculator will calculate the amount of material needed for a picket (pale) fence. It will calculate the actual post spacing based on max post spacing and the picket spacing on desired picket spacing to create a fence with evenly spaced post and evenly spaced pickets on the good side. If you are building a good neighbour fence, pickets on both sides, it will double the amount of pickets needed and you may have to adjust the total amount by one or two pickets needed.

The railing material is in lineal metres needed. That is the exact railing amount. If you buy the material in a store you will have to figure out how many sections you can get out of one length of material. A mill will most likely sell in cut to size lengths.

Length of Fence m
Number of Rails #
Width of Picket mm
Picket Spacing mm
One or Two Sides #
Post Size mm
Max Post Spacing m


Number of Post Needed #
Spacing in Between Post m
Rail Material in Lineal Metres m
You need pieces of this length m
Number of Pickets Needed #
Spacing in Between Pickets mm

The Calculation

  1. enter the length of the fence (in metres)
  2. number of rails (horizontal supports in between the post for nailing on the pickets. At least 2 are needed)
  3. the width of your picket (in millimetres)
  4. desired spacing between pickets (in millimetres)
  5. are pickets installed on one or both sides
  6. the size of the post (in millimetres)
  7. the max space in between post (in metres)

The Results

  1. number of post needed
  2. spacing in between the post (in metres)
  3. rail material in lineal metres
  4. number of lengths needed and the length in metres (for the railing sections)
  5. number of pickets needed
  6. space in between pickets (in millimetres)
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