Calcolatore di Recinzione

Ultimo aggiornamento: 2026-05-07

Usa il Calcolatore di Recinzione per ottenere risultati precisi. Inserisci i valori qui sotto.
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Common Sizes — Click to Fill
Lunghezza della recinzione (m) Larghezza dell'asse (cm) Spazio tra le assi (cm) Distanza tra i pali (m)
10 m 9 cm 2 cm 2.4 m
15 m 9 cm 2 cm 2.4 m
20 m 9 cm 2 cm 2.4 m
30 m 9 cm 2 cm 2.4 m
50 m 9 cm 2 cm 2.4 m
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What is the Fence Picket Calculator?

Planning a fence project without doing the math first is one of the costliest mistakes in DIY construction. Buy too few pickets and the project stalls; buy too many and you waste money on lumber that sits in your garage. The Fence Picket Calculator eliminates that guesswork — enter your fence length, picket width, gap size, and post spacing, and instantly get the exact number of pickets and posts you need, including recommended waste allowance.

You may also find the Decking Calculator, Baseboard Calculator, and Crown Molding Calculator useful.

Who Uses This Calculator?

This tool is used by homeowners installing privacy fences, contractors bidding fence jobs, and landscapers specifying materials for clients.

How to Use the Fence Picket Calculator

  1. Enter your Fence length.
  2. Enter your Picket width.
  3. Enter your Gap between pickets.
  4. Enter your Post spacing.
  5. Click Calculate to see your results instantly.

Formula

The calculator uses the following formula:

Pickets = ceil(fence_length ÷ (picket_width + gap)); Posts = ceil(fence_length ÷ post_spacing) + 1

Worked Example

A 30-metre backyard fence using 9 cm wide pickets with a 1 cm gap and posts every 2.4 m needs 273 pickets and 14 posts.

Step-by-Step Calculation

  1. Picket + gap = 9 cm + 2 cm = 11 cm = 0.11 m per picket unit
  2. Pickets: ceil(20 m ÷ 0.11 m) = 182 pickets
  3. Posts: ceil(20 ÷ 2.4) + 1 = 10 posts
  4. Rails (2 per span): 2 × (posts - 1) = 18 rails

Common Mistakes to Avoid

  • Forgetting the extra end post
  • Using picket width in metres instead of centimetres
  • Not accounting for gate openings
Pro Tip: Add 5–10% to the picket count for cuts, warped boards, and future repairs. Cedar and pressure-treated pine are the most common choices — cedar is naturally rot-resistant, pine needs treatment but costs less.

Frequently Asked Questions

How do I calculate pickets per section?

Divide the post spacing by the sum of picket width plus gap. For a 2.4 m section with 9 cm pickets and 1 cm gaps: 240 ÷ (9+1) = 24 pickets per section.

What gap should I leave between fence pickets?

A 1–2 cm gap is standard for privacy fences. Larger gaps (3–5 cm) give a more open, decorative look and allow more airflow, which helps prevent wood rot.

How many fence posts do I need?

Posts go at each end and every 1.8–2.4 m in between. The formula is: (fence length ÷ post spacing) + 1, rounded up. A 30 m fence with 2.4 m spacing needs 14 posts.

Does the calculator account for corner posts?

Yes — corner posts are counted in the total. Add one extra post for every 90-degree corner in your fence layout, then add gate posts in pairs (one per gate side).

What is the standard height for a privacy fence?

1.8 m (6 feet) is the most common privacy fence height in residential areas. Check your local council or HOA rules before building — many have maximum height limits.

Scritto e revisionato dal team editoriale di CalcToWork. Ultimo aggiornamento: 2026-05-07.

calcto.work — Calculated on 2026-05-07