Chain Link Fence Calculator

A chain link fence calculator takes fence length, line post spacing, and gate count, then returns fabric rolls, top rail sections, line posts, terminal posts, and tension wire. Fabric and top rail round up to 50 ft rolls and 10 ft sections. Each gate removes one line post and adds two terminal posts.

Last reviewed September 2026Method & sources Report an error

Not to scale.

Chain Link Fabric (50 ft rolls)

Shopping list

Chain Link Fabric (50 ft rolls)2 50 ft rolls
Top Rail (10 ft sections)10 10 ft sections
Line Posts10 posts
Terminal/Gate Posts2 posts
Bottom Tension Wire100 ft

Breakdown
Chain Link Fabric (50 ft rolls)	2
Top Rail (10 ft sections)	10
Line Posts	10
Terminal/Gate Posts	2
Bottom Tension Wire	100.0 ft

How to Calculate Chain Link Fence

Line posts follow the same spacing-based count used across this site's fence calculators (`fence length ÷ post spacing, rounded up, plus one`). Terminal posts are counted separately. They are the heavier-duty posts at corners, ends, and gate openings, since chain link uses a different post type there than along a straight run. Fabric and top rail are rounded up to the standard roll and section lengths they're commonly sold in. That means 50 ft rolls of fabric and 10 ft sections of top rail. This keeps the material list matched to what you can buy, rather than a raw linear-footage figure. Bottom tension wire runs the full fence length, tensioned along the bottom of the fabric to keep it taut and in the ground.

Example: 100 ft chain link fence run, 10 ft post spacing, 1 gate

A 100 ft chain link fence run, 10 ft post spacing, 1 gate: 1. Line posts: ceil(100 ÷ 10) + 1 − 1 gate = 11 − 1 = 10 2. Terminal/gate posts: 1 gate × 2 = 2 3. Fabric rolls (50 ft each): ceil(100 ÷ 50) = 2 4. Top rail sections (10 ft each): ceil(100 ÷ 10) = 10 5. Bottom tension wire: 100 ft That run needs 2 fabric rolls, 10 top rail sections, 10 line posts, 2 terminal/gate posts, and 100 ft of tension wire.

Chain Link Fence: Compare Scenarios

Scenario	Chain Link Fabric (50 ft rolls)	Top Rail (10 ft sections)	Line Posts	Terminal/Gate Posts	Bottom Tension Wire
Small (50 ft dog run)	1	5	5	2	50.0 ft
Medium (100 ft backyard)	2	10	10	2	100.0 ft
Large (300 ft yard perimeter)	6	30	30	2	300.0 ft

What Is Chain Link Fence?

A chain link fence calculator converts a fence run's total length, post spacing, and gate count into the fabric rolls, top rail sections, line posts, terminal/gate posts, and tension wire needed. These are the components chain link uses. They differ from a wood or vinyl fence's rail-and-picket system.

Chain Link Fence: Pros and Cons

Pros

Rounds fabric and top rail to their standard purchasable roll/section lengths instead of a raw linear-footage figure
Separates line posts from terminal/gate posts, since chain link uses heavier-duty posts at corners, ends, and gates
Scales gate count directly into the terminal post count, since each gate opening needs its own pair of posts

Cons

Doesn't size fabric height, gauge, or coating (galvanized vs. vinyl-coated). Those are project decisions based on your specific security, visibility, and durability needs
Post spacing beyond 10 ft is uncommon for standard residential chain link. A taller or higher-security fence typically uses closer spacing, which this calculator supports by adjusting the input
Doesn't include the tie wires, rail ends, post caps, and tension bands every real installation also needs. This covers the primary structural and fabric components

Chain Link Fence: What a Pro Checks

Set terminal posts (corners, ends, and gate openings) with more concrete than line posts. They carry the tension of the stretched fabric, while a line post only supports the fabric's weight.
Tension the bottom wire snugly along the fabric before tying it off. It keeps the bottom edge taut and close to the ground instead of able to be pushed or pulled up.
Budget separately for tie wires, rail ends, post caps, and tension bands. This estimate covers fabric, top rail, posts, and tension wire, not every small hardware piece a real installation needs.

Frequently Asked Questions

How many rolls of chain link fabric do I need?

Divide your total fence length by the standard 50 ft roll length and round up. A 100 ft fence needs 2 rolls, even though that's exactly divisible. Always round up rather than assuming a perfect fit, since seams and end waste use a bit of extra material.

How far apart should chain link fence posts be?

Commonly 10 ft apart for standard residential chain link, though closer spacing (down to 6 ft) is used for taller fences or higher wind-load areas. Check your fabric height and local wind conditions.

What's the difference between a line post and a terminal post?

Line posts run along a straight section of fence and only support the fabric's weight. Terminal posts (at corners, ends, and gate openings) bear the tension of the stretched fabric and are typically heavier-gauge posts set with more concrete.

Do I need tension wire for a chain link fence?

Yes, typically. A bottom tension wire runs the length of the fence and is tied to the fabric, keeping the bottom edge taut and close to the ground rather than able to be pushed or pulled up.

How much does adding a gate change the post count?

Each gate opening needs its own pair of terminal (gate) posts instead of a line post at that location. This calculator accounts for that by subtracting the gate count from the line post total and adding the corresponding gate posts separately.

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