Construction

Rectangle Fence Perimeter Calculator

Find the perimeter and posts of a rectangular fenced area.

Length

Width

Post spacing

Calculated Output

Perimeter 4

Corners + posts 8

Formula: perimeter = 2(L + W) ; posts = perimeter ÷ spacing

Step-by-Step Breakdown

1. Values used:

2. Length = 1

3. Width = 1

4. Post spacing = 1

6. Perimeter = 4

7. Corners + posts = 8

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The math behind it

perimeter = 2 × (length + width); posts = perimeter ÷ spacing + extra for corners.

50 × 30 ft → 160 ft; at 8 ft spacing → 24 posts.

Gates?

Add separate posts for gate openings.