Fence Picket, Rail & Post Count Calculator (Wood & Vinyl)

Estimate posts, rails, and pickets for privacy and stockade fences.

Quick Reference Coverage Chart (Concrete & Masonry)

Instant pre-calculated material estimates for common US residential project sizes before compaction buffer:

Typical US Project Area Depth Volume Weight Store Bags
100 ft Privacy Fence Run (6 ft tall) 100 linear ft 8 ft post spacing 14 Posts + 28 Rails + 190 Pickets 1,200 lbs Complete hardware list

Engineering Formula & Material Density Constant

Posts = (Run ÷ 8) + 1; Rails = Sections × 2 or 3; Pickets = Run (in) ÷ Picket Width

Calculates exact structural 4x4 posts based on 8-foot section spacing, horizontal stringer rails, and vertical privacy pickets.

Post Depth Rule for 6-Foot Fences

For a standard 6-foot privacy fence, use 8-foot 4x4 posts buried a full 30 inches deep into concrete footings to withstand high wind loads.

Frequently Asked Questions

How many pickets do I need per 8-foot fence section?

For standard 5.5-inch wide pickets with a 1/2-inch gap (or side-by-side board on board), you need roughly 16 to 18 pickets per 8 ft section.

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