# Chain Length Fence Calculator

Chain length fence calculator for materials. Counts fabric rolls, line and terminal posts, top rail, tension wire, ties, concrete bags, and gate hardware.

## What this calculates

A chain length fence (often spelled chain link) is the most common galvanized wire-mesh fence in North America. This chain length fence calculator produces a complete bill of materials: fabric rolls, line and terminal posts, top rail sticks, tension wire, concrete bags, and tie wires so you can hand the list straight to a fence supplier.

## Inputs

- **Fence Length** (ft) — min 0 — Total linear feet of chain length fence
- **Fence Height** — options: 4 ft (pet, garden), 5 ft (standard residential), 6 ft (privacy/backyard), 8 ft (commercial/security)
- **Fabric Coating** — options: Galvanized (silver, GAW), Vinyl-coated black (PVC), Vinyl-coated green (PVC)
- **Fabric Gauge** — options: 11 gauge (residential), 9 gauge (commercial/heavy-duty) — 9 gauge is about 50% heavier wire
- **Line Post Spacing** — options: 8 ft OC (high-wind, residential premium), 10 ft OC (standard)
- **Number of Corners** — min 0, max 20 — Add corners where the fence changes direction
- **Walk Gates** — min 0, max 10
- **Drive Gates (12 ft)** — min 0, max 5

## Outputs

- **Fabric Rolls (50 ft)** — Chain link fabric rolls needed
- **Line Posts** — 1-5/8 or 1-7/8 inch diameter
- **Terminal Posts** — Ends, corners, and gate posts (2-3/8 inch)
- **Top Rail Sticks (10.5 ft)**
- **Tension Wire** (ft) — Bottom tension wire, continuous run
- **Concrete Bags (50 lb)** — For setting posts
- **Tie Wires / Clips** — Aluminum ties to attach fabric to rails and posts

## Details

## What a Chain Length Fence Needs

A chain length fence uses these parts:

- **Fabric:** 50-ft rolls of galvanized or vinyl-coated chain link mesh (9 or 11 gauge)
- **Line posts:** 1-5/8" or 1-7/8" diameter steel tube, set every 10 ft (8 ft for high wind)
- **Terminal posts:** 2-3/8" diameter, at every end, corner, and gate (2 per gate opening)
- **Top rail:** 1-3/8" diameter steel tube in 10.5 ft sticks, sleeved together
- **Tension wire:** coated or galvanized steel wire at the bottom, continuous run
- **Hardware:** tension bands, brace bands, rail ends, post caps, ties
- **Concrete:** 1/3 bag (50 lb) per line post, 1 bag per terminal post
- **Gates:** walk gates 3-4 ft wide, drive gates 10-12 ft wide

## Chain Length Fence Fabric Rolls

Chain link fabric comes in 50-foot rolls. A 200-foot fence needs 4 rolls. Odd-length fences round up: a 175-foot fence needs 4 rolls (200 ft) with 25 feet left over, which saves about $60 compared to cutting a partial roll at the supplier.

## Posts for a Chain Length Fence

For a 200-foot fence at 10 ft OC spacing:

- Line posts: 19 (one between each section, 20 sections minus terminals)
- Terminal posts: 2 ends + corners (count yours) + 2 per gate
- For a rectangular yard with 4 corners and 1 walk gate: 2 ends + 4 corners + 2 gate posts = 8 terminal posts

Always use 2-3/8" diameter at corners and ends; 1-5/8" is sufficient only for line posts.

## Top Rail, Tension Wire, and Ties

- Top rail comes in 10.5-foot sticks that sleeve together. For 200 ft of fence: ceil(200 / 10.5) = 20 sticks.
- Tension wire runs continuously along the bottom. For 200 ft: one 200-ft length.
- Ties: about 200 aluminum ties per 50-foot section of fence (top rail, tension wire, and post clips combined).

## Concrete for Posts

- Line posts need 1/3 bag of 50-lb concrete each
- Terminal posts need 1 full 50-lb bag each
- For the 200-foot example with 19 line posts and 8 terminal posts: 19/3 + 8 = 14.3, round up to 15 bags

## 11 Gauge vs 9 Gauge Fabric

- **11 gauge (0.120" wire):** standard residential, lasts 15-20 years, cheaper
- **9 gauge (0.148" wire):** commercial / heavy-duty, lasts 20-30 years, about 50% heavier wire, 15-25% more expensive

## Vinyl-Coated vs Galvanized

Vinyl-coated (PVC) in black or green adds 35-45% to fabric cost but looks better in residential yards and lasts 5-10 years longer before fabric degradation. Galvanized is fine for farm, industrial, or budget residential use.

## Gate Openings Don't Need Fabric

When calculating fabric, subtract all gate widths from your total fence length. A 200-foot fence with one 4-foot walk gate and one 12-foot drive gate needs fabric for 200 - 16 = 184 feet (4 rolls, 16 ft left over).

## Frequently Asked Questions

**Q: What does a chain length fence calculator calculate?**

A: A chain length fence calculator totals the materials needed to build a chain link fence: fabric rolls (50 ft each), line posts at 10 ft OC, terminal posts at ends/corners/gates, top rail sticks (10.5 ft each), tension wire for the bottom, concrete bags for setting posts, and tie wires to secure the fabric. It produces a full bill of materials you can order from a fence supplier.

**Q: How many fabric rolls do I need for a chain length fence?**

A: Chain link fabric comes in 50-foot rolls. Divide your fabric run (fence length minus gate openings) by 50 and round up. A 200-foot fence with one 4-foot walk gate needs 196 ft of fabric = 4 rolls (200 ft), with 4 ft scrap. Add 10% extra rolls for sloped or curved sections.

**Q: How far apart should line posts be on a chain length fence?**

A: 10 feet on-center is the standard spacing for residential and light commercial chain length fence. Use 8 feet on-center for high-wind areas (Gulf Coast, Plains), 8-foot tall fences, or when using 11 gauge fabric on tall sections. Never exceed 10 feet on-center; the top rail will sag between posts.

**Q: What size posts go in a chain length fence?**

A: Line posts are 1-5/8 inch or 1-7/8 inch OD steel tube. Terminal posts (ends, corners, and gate posts) are 2-3/8 inch OD. Residential fences up to 6 ft use 1-5/8 inch line and 2-3/8 inch terminal. Commercial 8-ft fences use 1-7/8 inch line and 2-7/8 inch or 3 inch terminal. Always oversize terminals; they anchor the pull on fabric.

**Q: Do I need concrete for every chain length fence post?**

A: Line posts can sometimes be set with tamped gravel (code-dependent), but concrete is standard and more stable. Terminal posts always need concrete, one full 50-lb bag each. Line posts need 1/3 bag each. Frost-prone regions: set posts below the frost line (typically 30-48 inches).

**Q: How much does the chain length fence fabric weigh?**

A: A 50-ft roll of 6-ft tall, 11-gauge galvanized chain link fabric weighs about 65-75 lbs. A 50-ft roll of 9-gauge 6-ft fabric weighs 100-110 lbs. Plan for two people to handle 6-ft rolls and a hand truck for 8-ft rolls, which exceed 125 lbs.

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Source: https://vastcalc.com/calculators/construction/chain-length-fence
Category: Construction
Last updated: 2026-04-08