Fence Post Spacing & Layout Calculator
Avoid costly lumber mistakes. Calculate the exact number of posts, sections, and rails needed. Whether you are installing a 6ft privacy fence or a picket boundary, get precise center-to-center spacing instantly.
Calculate Materials
Your Layout Plan
Total Posts:
0
Total Sections:
0
✅ On-Center Spacing:
0' 0"
Clearance (Inside):
0' 0"
3 Simple Steps
1
Measure Line
Run a tape measure along your property line. Mark your corners first.
2
Select Size
Choose 8ft for standard lumber or 6ft for high-wind areas.
3
Get Layout
Our tool divides your length into equal sections to avoid waste.
Fence Layout Blueprint
Figure 1.1: The calculator determines the "On-Center Spacing" to ensure equal sections.
Frequently Asked Questions
Does this deduct for the Gate width?
No. You should measure your total fence line and subtract the gate width first (e.g., if you have 100ft and a 4ft gate, enter 96ft).
What is "On-Center" spacing?
On-Center measures from the center of one post to the center of the next. This is the industry standard to ensure posts are evenly distributed.
How many bags of concrete per post?
For a standard 4x4 post set 2 feet deep, you typically need 1.5 to 2 bags (50lb) of concrete per hole.
Should I set posts 6ft or 8ft apart?
8 feet is standard and economical. Use 6 feet for high-wind areas or heavy privacy fences.
Does it calculate the last odd section?
Yes. Our algorithm calculates Even Spacing so all your sections are exactly the same size, rather than leaving a small piece at the end.