Fencing · Project planning

Fence Calculator

Describe connected fence runs and gate openings to build a material takeoff. Shared corners count as one physical post; gate openings divide the infill into independently spaced spans.

By Alish Gautam, Software Developer · Updated · 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
Basic settings
Editable wood-fence planning example. Use project or manufacturer limits.
Use a specialized tool for system-specific hardware.
Editable arithmetic example. Replace with your project or product specification.
Product settings
Product and system dimensions
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Choose none to omit displacement.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
Editable arithmetic example. Replace with your project or product specification.
QUIKRETE Concrete Mix No. 1101: 80 lb ≈ 0.60 ft³; 60 lb ≈ 0.45 ft³. Select custom for another bag or product.
Optional supplier product name, chart revision or quote reference, saved in shared project state.
Advanced settings
Advanced planning settings
Connect the last run back to the first. All runs must form one connected perimeter.
Enter the combined post-face / bracket reduction per bay. Zero treats the equal bay spacing as the clear board field.
Planning allowance, not a code or industry requirement. Set zero to order the exact rounded takeoff.
Cost settings · USD
Optional quote prices
Optional quoted unit price.
Optional quoted unit price.
Optional quoted unit price.
Optional quoted unit price.
Optional quoted unit price.

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
First bay actual equal gap
0 in
First bay end-board trim
1.192 in
Boards per net unit length
2.21 per ft
Net requirement
221 pieces
Allowance
22.1 pieces
Planned requirement
243.1 pieces
Unrounded package requirement
243.1
Boards / pickets to buy
244
Purchased coverage
244 pieces
Surplus beyond planned requirement
0.9 pieces

Supplier-ready material list

Specified fence / board height
6 ft
line posts
12
end posts
2
corner posts
0
gate posts
0
Boards / pickets to buy
244
Rails to buy
43
Rail installed linear length
300 ft
Fasteners before reserve
1,326
Concrete volume before allowance
19.609 ft³
Concrete bags including allowance
36

Check before ordering

  • Trim the final board to fit this field at the selected gap, or revise the field/board dimensions.
Geometry / layout breakdown
Dimensions use the selected measurement system.
RunInfill (ft)BaysEqual spacing (ft)
Run 1100137.692
Infill span sketch. Shared supports appear in both spans; the physical post total above counts each once. Gate openings are omitted from infill.
Infill span elevationsSpan 1: Run 1 · 13 bays

Post sizes, spacing, height and waste are editable planning examples. The takeoff does not assess wind, ground conditions, structural adequacy, setbacks or boundary ownership.

How it works

For each infill span, bays = ceil(length / maximum spacing). Unique endpoints plus intermediate posts give physical post count. Rails and pickets are counted by bay, then purchase allowances are rounded upward.

Assumptions and limitations

Post sizes, spacing, height and waste are editable planning examples. The takeoff does not assess wind, ground conditions, structural adequacy, setbacks or boundary ownership.

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

QUIKRETE: Setting Posts without Mixing

Open the source · Web guidance; edition not stated · Reference checked 2026-10-04

Scope: Manufacturer general post-setting instructions

Used for: One-third to one-half above-ground-height planning reference.

Does not establish: Local frost depth; Wind design; Universal minimum embedment.

Planning guidance must be checked against soil, loads and project requirements.

QUIKRETE: Concrete Mix No. 1101 — SPEC-DATA

Open the source · No. 1101 SPEC-DATA · Reference checked 2026-10-04

Scope: Yield of the specified packaged mix

Used for: 80 lb approximate yield 0.60 ft³; 60 lb approximate yield 0.45 ft³.

Does not establish: All concrete products; Fast-setting mix equivalence.

Only verified 60/80 lb presets are offered; custom bag yield remains available.