Formula Used
Adjusted sloped length: La = L × √(1 + slope²)
Line posts: Pline = ceil(section length ÷ spacing) − 1
Mesh rolls: maximum of length-based rolls and area-based rolls.
Concrete per post: V = π(R² − r²)h
Total estimate: materials + labour + extras + markup + contingency + tax.
How to Use
Choose one measurement unit for all dimensional inputs. Add every fence section and its local height. Include corners, ends, slopes, and gate openings.
Select rails, wire, privacy slats, and foundation settings. Enter supplier prices and realistic labour assumptions. Review warnings before ordering materials.
Submit the form to create schedules and costs. Export the tables for purchasing or quoting. Confirm local codes before final installation.
Example Data
| Input | Example | Purpose |
|---|---|---|
| Fence length | 100 ft | Defines the project perimeter. |
| Fence height | 6 ft | Sets mesh and post requirements. |
| Post spacing | 10 ft | Controls intermediate line posts. |
| Gate | One 3 ft pedestrian gate | Reduces mesh and adds gate posts. |
| Waste allowance | 7% | Covers cuts, overlaps, and damage. |
Frequently Asked Questions
How are line posts calculated?
Each section is divided by maximum spacing. Intermediate posts are rounded upward. Terminal posts are counted separately.
Are gate openings removed from mesh?
Yes. Combined gate width reduces net mesh length. Gate area also reduces required fabric area.
Why can area require more rolls?
A taller fence can exceed the selected roll height. The calculator therefore checks both length and area.
Does concrete volume subtract post volume?
Yes. The cylindrical post volume is removed. Gravel base depth is also excluded.
Can I use metric inputs?
Yes. Select metres or centimetres first. Use that unit consistently for dimensions.
How is sloped ground handled?
Slope percentage increases actual fence length. This affects mesh, rails, wire, and labour.
Are all hardware items exact?
Hardware quantities are planning estimates. Manufacturer systems may require different bands, clips, or fittings.
Does the total include tax?
Yes, when a tax percentage is entered. Markup and contingency are applied before tax.
Can this produce contractor quotations?
Yes. Adjust labour, markup, contingency, and additional costs. Export the resulting cost schedule.
Should local codes override these results?
Always. Wind, frost, security, and permitting rules vary. Verify requirements before construction.
Why are quantities rounded upward?
Posts, rolls, bags, and sections are purchased whole. Upward rounding avoids material shortages.