Fencing · Project planning

Fence Panel Calculator

Order full and cut panels for corner-separated runs and gate-separated infill. Enter the effective installed module width from the selected product.

By Alish Gautam, Software Developer · Updated 4 October 2026 · Calculation methodology

Start with the editable example below. Dimensions retain their physical size when units change. Region sets currency labels without converting currencies; confirm entered quotes after changing region.

Fence layout

Run length includes gate openings. Gate offset is measured from the run start. Corner and straight connections share the preceding end post.

Run 1

Run label

Measured run length (ft)

Basic settings

Installed panel module width (ft)Editable arithmetic example. Replace with your project or product specification.

Product settings

Product and system dimensions

Product / specification referenceOptional supplier product name, chart revision or quote reference, saved in shared project state.

Advanced settings

Advanced planning settings

Close perimeterConnect the last run back to the first. All runs must form one connected perimeter.

Purchase allowance (%)Planning allowance, not a code or industry requirement. Set zero to order the exact rounded takeoff.

Cost settings · USD

Optional quote prices

Price per purchased pack / unitOptional supplier quote in the selected currency. Blank omits cost.

Project takeoff

Whole packages round up. Allowance is separate from purchased surplus. Prices omit labor, delivery, tax and other items unless explicitly entered.

Total measured fence run: 100 ft
Gate openings: 0 ft
Net infill length: 100 ft
Maximum bay spacing: 8 ft
Infill bays: 13
Physical posts: 14
Full modules: 12
Cut / end modules: 1
Net requirement: 13 panels
Allowance: 1.3 panels
Planned requirement: 14.3 panels
Unrounded package requirement: 14.3
Panels to buy: 15
Purchased coverage: 15 panels
Surplus beyond planned requirement: 0.7 panels

Supplier-ready material list

line posts: 12
end posts: 2
corner posts: 0
gate posts: 0
Panels to buy: 15
Post caps: 14

Geometry / layout breakdown

Dimensions use the selected measurement system.
Span	Panels	Full	Cut	Last panel (ft)
1	13	12	1	4

Module width can mean post centres or clear infill width depending on the system. Confirm whether the chosen panel can be cut and how cut panels connect.

How it works

Each span needs ceil(span / module width) panels. Last panel = span − (count − 1) × module width; each span is rounded independently.

Assumptions and limitations

Module width can mean post centres or clear infill width depending on the system. Confirm whether the chosen panel can be cut and how cut panels connect.

Whole packages round upward after the chosen allowance. Physical geometry and purchase reserve are separate. Manufacturer and project specifications override editable examples; the selected region does not establish a local code requirement.

Sources and boundaries

ASTM International: F964 — Rigid PVC Exterior Profiles Used for Fencing and Railing

Open the source · F964-13(2024) · Reference checked 2026-10-04 · Published/updated 2024-09-12

Scope: PVC profile specification catalogue

Used for: Current listed edition and material scope.

Does not establish: Panel widths; Post centres; Footing dimensions.

The published catalogue and scope were checked; no inaccessible numerical provision is asserted. Official catalogue lists F964-13(2024). No numerical material properties are inferred.