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Fence Post Distance Calculator

Last updated: 24 Apr 2025 | Author: Brij | Review By: Irshad
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Calculate accurate spacing between fence posts with our Fence Post Distance Calculator. Enter fence length, number of posts, and post thickness to get perfect post spacing in inches.

Fence Post Calculation Results

Planning a fence project? One of the most important things to get right is the spacing between fence posts. Proper spacing ensures the fence is sturdy, looks clean, and fits your layout perfectly. This Fence Post Distance Calculator helps you calculate the space between each post, accounting for the total length of your fence and the thickness of the posts.

Fence Post Distance Formula

To calculate the spacing between posts, follow these steps:

✅ Step 1: Convert Fence Length to Inches

Since post thickness is in inches, we first convert fence length from feet to inches:

Formula:

Total Length (in)=Fence Length (ft)×12\text{Total Length (in)} = \text{Fence Length (ft)} \times 12Total Length (in)=Fence Length (ft)×12

✅ Step 2: Calculate Total Post Thickness

Total Post Thickness=Number of Posts×Post Thickness (in)\text{Total Post Thickness} = \text{Number of Posts} \times \text{Post Thickness (in)}Total Post Thickness=Number of Posts×Post Thickness (in)

✅ Step 3: Subtract Post Thickness from Total Length

Remaining Length=Total Length (in)−Total Post Thickness\text{Remaining Length} = \text{Total Length (in)} - \text{Total Post Thickness}Remaining Length=Total Length (in)−Total Post Thickness

✅ Step 4: Calculate Spacing Between Posts

Post Spacing=Remaining LengthNumber of Posts−1\text{Post Spacing} = \frac{\text{Remaining Length}}{\text{Number of Posts} - 1}Post Spacing=Number of Posts−1Remaining Length​

Example: Fence Post Distance Calculation

Let’s say you want to build a 50-foot long fence using 6 posts, each 3.5 inches thick. Here's how you calculate the post spacing:

Step 1: Convert 50 ft to inches

Total Length=50×12=600 in\text{Total Length} = 50 \times 12 = 600 \text{ in}Total Length=50×12=600 in

Step 2: Total thickness of 6 posts

Total Post Thickness=6×3.5=21 in\text{Total Post Thickness} = 6 \times 3.5 = 21 \text{ in}Total Post Thickness=6×3.5=21 in

Step 3: Subtract post thickness

Remaining Length=600−21=579 in\text{Remaining Length} = 600 - 21 = 579 \text{ in}Remaining Length=600−21=579 in

Step 4: Calculate spacing

Post Spacing=5796−1=5795=115.8 in\text{Post Spacing} = \frac{579}{6 - 1} = \frac{579}{5} = 115.8 \text{ in}Post Spacing=6−1579​=5579​=115.8 in

Final Answer:

Each post should be spaced approximately 115.8 inches apart.


Fence Post Distance Calculator

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