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# How to calculate picket spacing?

## How to calculate picket spacing?

#1
05-21-18, 06:32 PM
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Join Date: Jul 2010
Location: USA
Posts: 901
How to calculate picket spacing?

I need to calculate the space between each picket fence. Does anyone know a good calculator for that? The inside end posts is 41 inch. The picket width is 3.5 inch and I have 10 of them. I need to know the space between each of the ten picket fence so that it is evenly spaced. Any help is much appreciated.

#2
05-21-18, 06:44 PM
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Join Date: Dec 2004
Posts: 27,103
You have 35" of pickets which leaves 6" remaining if spread out over 41". 9 gaps between the 10 boards. That would be about 11/16" between boards.

#3
05-21-18, 06:52 PM
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Join Date: Nov 2007
Location: United States
Posts: 14,336
Deduct the space the pickets will take up (3.5" x 10 = 35")
Deduct the space (41") from the material (35") = 6"

You have 6" of free space.
10 pickets will have 11 spaces between the posts and the pickets (one more then the pickets) so you divide 6 / 11 = Gives you .54" or about 17/32" between each post and picket.

IMO - I would choose what space you want between the pickets (Example 1.5") and then adjust the pickets to fit the space with that size gap.

#4
05-22-18, 08:15 AM
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Join Date: Jul 2010
Location: USA
Posts: 901
Thanks a whole bunch for the help!

#5
05-23-18, 03:52 AM
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Join Date: Sep 2013
Location: United States
Posts: 10,957
Keep in mind that if the pickets are treated they will shrink as they dry out over the next few months, widening the spaces between.

When my fence was initially erected the pickets were literally touching each other. By seasons end the spacing was about a 1/2 inch.