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BuildRight
Fence length divided into sections by post spacing — one more post than the number of sections.
This calculator gives a straight-line post count — corner posts, gate posts, and end posts typically need to be larger or set deeper than the standard line posts in between, since they bear more load.
Closer post spacing (6 ft) costs more in posts and labor but creates a sturdier fence; wider spacing (8 ft) is cheaper but requires stronger, more rigid fence panels or rails to avoid sagging.
Posts needed
20
Standard post spacing is 6-8 feet — shorter spacing costs more but adds stability.
What you entered
Number of fence sections
⌈150 ÷ 8⌉= 19 sectionsPosts needed (one more than the number of sections)
19 + 1= 20 postsResult
Posts needed: 20
150 ft of fencing at 8 ft spacing needs 20 posts across 19 sections.