How to use this calculator
- Enter total run length and number of separate runs.
- Describe gate count and average opening width.
- Set post spacing, fence height, and picket coverage.
- Add concrete per post and a picket waste allowance.
#3009 · Lifestyle & Home Tool
Fence Installation Material Quantity Calculator
Create an early fence material takeoff from total run length and your chosen layout. The calculator estimates sections and posts, then derives rails, pickets, concrete, and gate openings. It treats each continuous run as needing an end post, so the number of separate runs matters. Structural details, property lines, utilities, wind exposure, and local rules still require verification.
Calculator
Project assumptionsFormula
Pickets = ceil(net infill length × 12 ÷ installed picket coverage × (1 + waste %)); posts = sections + separate runs.
What the result means
Counts are planning quantities for a simplified layout. Corners, slopes, stepped panels, double gates, bracing, and reinforced gate posts may change the order.
Locate property lines and underground utilities before digging. Verify post depth, wind design, pool-barrier rules, and permits locally.
Example calculation
A 200 ft, one-run, 6 ft fence with one 4 ft gate, 8 ft spacing, 5.75 in picket coverage, two bags per post, and 5% waste needs about 430 pickets, 27 posts, 75 rails, and 54 concrete bags.
Tips for better results
- Lay out corners, ends, and gates before counting line posts.
- Use actual picket coverage, not nominal width.
- Treat double-gate hardware and bracing separately.
- Calculate concrete from actual hole dimensions and bag yield.
- Confirm property boundaries and utility marks before excavation.
Frequently asked questions
Why does each separate run add an end post?
A continuous line has posts at both ends; counting intervals alone omits one terminal post per separate run.
Are gate posts included?
The simplified section count includes gate positions, but heavy or double gates may need additional or larger reinforced posts.
How many rail rows does the calculator use?
It uses two rows for fences up to four feet high and three rows above four feet as a planning assumption.
Does the picket count work with gaps?
Yes, if installed picket coverage includes the actual picket face plus the planned gap.
Can I use this quantity for a sloped fence?
Use it only as a starting point; stepped or racked layouts can change post, panel, rail, and cut quantities.
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Inputs and assumptions
| Variable | Meaning |
|---|---|
| Net infill length | Total run less gate openings |
| Sections/posts | Spacing intervals plus run end posts |
| Rail rows | Two at up to 4 ft; three above 4 ft |
| Picket coverage | Installed face width plus planned gap |