Fence posts and panels
Estimate posts and bays for open runs, closed loops and separately entered gates.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
Your result
Complete the inputs to see your result.
How it works
- Bays = Σ ceil(Length/Maximum bay width); Open run: Posts=Bays+1; Closed loop: Posts=Bays; − Duplicated endpoints to subtract
- Worked example: 10 m ÷ 2.5 m = 4 Bays; Open run ⇒ 5 Posts; Closed loop ⇒ 4 Posts
- Supported input limits: Entries: 1–50; Maximum bay width: 1e-12 ≤ x ≤ 1000000000000; Duplicated endpoints to subtract: 0 ≤ x ≤ 100
Assumptions and limitations
Enter measured dimensions in the selected length unit; area, opening and pack coverage values use m². Allowances apply once and only purchases round upward. This estimates material quantities, not structural design, cutting layouts or installation standards. Product coverage and yields must come from your actual product.
Sources
- OpenStax — rectangle areas and dimensional measures Sources reviewed: 2026-10-06
