Measure actual board width and choose a finished gap deliberately. Wet wood, drying, privacy goals, code constraints, and the manufacturer’s assembly pattern may affect the layout.
01 / Formula
How this is calculated
Pickets = ceiling(run length × 12 ÷ (picket width in + gap in))02 / Assumptions
What the estimate assumes
- ✓Pickets are vertical and evenly spaced.
- ✓Width and gap are entered in inches.
- ✓Posts, gates, overlaps, trim boards, and special end conditions are measured separately.
03 / Worked example
See the math in context
An 80-ft run using 5.5-in pickets with 2-in gaps needs 154 pickets before allowance.
04 / Guidance
Test a short layout
Place several actual boards with spacers before committing. Small width or gap differences accumulate across a long run and can affect the last bay.
05 / Guidance
Account for board movement
Wood moisture and species affect movement. Follow supplier and finish guidance rather than assuming one gap suits every material.
Questions
Frequently asked
Do fence prices or dimensions have universal defaults?+
No. Product dimensions, labor, access, soil, wind exposure, finish, gates, permits, and local markets vary. Enter the measurements and current quotes for your project.
Does the result replace a site plan or product instructions?+
No. Treat it as a planning estimate. Confirm boundaries, utilities, easements, local rules, structural requirements, and the manufacturer’s instructions before work begins.
How should I handle corners and gates?+
Measure each straight run separately. Count end, corner, and gate posts as terminal posts, and subtract actual gate openings from fence fabric or panel length.