Fence Picket Calculator
Calculate fence pickets, fasteners, package quantities and material cost from fence length, openings, picket width and gap.
Default project preview
161 pickets
Net fence run
76 ft
Layout coverage
76.5 ft
Fasteners
966
Fastener packages
4
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Input and output guide
What each value means
The labels and units below are part of this calculator’s visible methodology. Replace every default with measurements or product data from the actual project.
Total fence length
Enter this project assumption in ft. The current imperial default is 80 ft.
Gate and opening deductions
Enter this project assumption in ft. The current imperial default is 4 ft. Minimum: 0.
Picket face width
Enter this project assumption in in. The current imperial default is 5.5 in.
Gap between pickets
Enter this project assumption in in. The current imperial default is 0.5 in. Minimum: 0.
Waste allowance
Enter this project assumption in %. The current imperial default is 5 %. Minimum: 0. Maximum: 50.
Fasteners per picket
Enter this project assumption in a unitless value. The current imperial default is 6. Minimum: 1.
Fasteners per package
Enter this project assumption in a unitless value. The current imperial default is 250.
Price per picket
Enter this project assumption in a unitless value. The current imperial default is 3.5. Minimum: 0.
Price per fastener package
Enter this project assumption in a unitless value. The current imperial default is 18. Minimum: 0.
How to read the outputs
Net fence run
after openings. Default preview: 76 ft.
Layout coverage
pickets and gaps. Default preview: 76.5 ft.
Fasteners
6 per picket. Default preview: 966.
Fastener packages
rounded full packages. Default preview: 4.
Picket module
face plus gap. Default preview: 6 in.
Material cost
pickets and fasteners. Default preview: $635.50.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Net fence run = total length − openings. Layout pickets = round up ((run + gap) ÷ (picket width + gap)). Waste and fastener packages are then rounded up.
Reviewed project guidance
How to use this estimate in a real project
Last reviewed: July 30, 2026
Use this calculator to estimate fence pickets from clear run length, picket width, target gap, section count and spare allowance. It supports material takeoff but does not determine post spacing or wind resistance.
Calculation steps
- 1Measure clear fence length between posts.
- 2Add picket width and intended gap to form the module.
- 3Divide each section by the module and check end spacing.
- 4Add spare allowance and round to bundles if applicable.
Worked numerical example
A 48 ft clear fence run using 3.5 in pickets with 0.5 in gaps has a 4 in module. Converting 48 ft to 576 in gives 144 modules, so plan about 144 pickets before allowance and end-gap adjustment.
Purchasing and rounding
Pickets are purchased as whole pieces or bundles. Order extra matching pieces for splits, grade defects and future repairs.
Interpret the result
Actual end gaps may be slightly adjusted to distribute spacing evenly across each post-to-post section.
Page-specific assumptions
- Uniform picket width.
- Equal or separately measured sections.
- Straight fence runs.
- Posts and rails are estimated separately.
Common mistakes
- Calculating from total property length without post deductions.
- Ignoring actual picket width.
- Using one layout across unequal sections.
- Forgetting gate openings.
Primary and technical references
BuildMeter provides planning estimates, not engineering, architectural, electrical, mechanical, plumbing, permit or code approval. Review the methodology and verify final decisions with product documentation and qualified professionals.
FAQ
Fence Picket Calculator questions
Why add the gap to the numerator?+
A run with multiple pickets has one fewer gap than pickets. Adding one gap produces the correct repeated-module count.
Should pickets touch the ground?+
Usually a clearance is left to reduce moisture damage, but the correct clearance depends on the material and site.
Does this include posts and rails?+
No. Use the fence calculator for panels, posts, rails, gates and concrete.