TryBuildCalcChain-Link Fence Calculator (Posts, Fabric, Rail & Tension Wire)
Find your posts, fabric rolls, and rail instantly.
🕒 Last updated: September 6, 2026
Inputs
ℹ️Total linear run — confirm against an actual property survey, not just a fence-line guess.
ℹ️Fabric only comes in fixed roll heights — check local ordinance limits, which are often lower at front yards than back/side yards.
ℹ️10 ft is standard residential spacing; tighten to 8 ft for taller fences or high-wind areas.
ℹ️The lighter intermediate posts along the run — 1-5/8" for fences up to 5 ft, 2" for 6 ft and taller.
ℹ️The heavier posts at the run's ends, corners, and gates — always larger than line posts since they alone carry the fabric's full tension.
Waste
ℹ️Applied to fabric, top rail, tension wire, and tie wires — 10% is a common estimating default. Not applied to the fixed post or concrete bag counts.
Cost
Posts Needed
11
9 line + 2 terminal (3.0 ft buried)
Fabric Rolls Needed
3
6 ft high, 50 ft rolls
Posts & Footings
Sections (10 ft O.C.): 10
Line posts: 2" OD, 9.0 ft each
Terminal posts: 2.5" OD, 9.0 ft each
Concrete bags (80 lb): 11
Rail, Wire & Ties
Top rail sections (10 ft each): 11
Bottom tension wire: 110 ft
Tie wires (+10% waste): 55
Assumptions Used
Standard US residential chain-link fence construction, one straight run. Post count follows the same "one per spacing, minimum 2" on-center formula used elsewhere on this site — 10 ft O.C. is standard, 8 ft for taller fences or high-wind areas. Terminal posts (the run's 2 ends, plus 2 per gate) are always larger-diameter than line posts, since they alone carry the fabric's full tension. Post bury depth is a rule-of-thumb (buried = fence height ÷ 2) — always verify against your local frost line, which governs whenever it's deeper than this rule gives. Concrete volume uses each post's own round cross-section (unlike a wood fence's square post), subtracted from a footing hole roughly 3× the post's own diameter. Fabric is sold in full 50 ft rolls only; top rail and tie wire scale with the fabric run length, and waste applies to fabric, rail, tension wire, and ties — not to the fixed post or concrete bag counts. This calculator computes material quantities only — it does not verify structural post embedment for wind load, local fence-height ordinances/setbacks, or property line surveys.
Bill of Materials
Main material: 9 pcs + recommended tools
+−
Bill of Materials
Main material: 9 pcs + recommended tools
Computed items reflect your entered length and height; consumables below are general recommendations — actual needs vary by product and site conditions.
For Your Job
Line Posts
Terminal Posts
Fabric (Mesh) Rolls
Top Rail Sections
Bottom Tension Wire
Concrete
General Tools & Consumables
Tie wires
Rail end/tension bands & caps
Tension (stretcher) bar
Gate hinges & latch hardware
Come-along / fence stretcher
Post level / string line
Post hole digger or auger
Fence pliers / tie-wire tool
Tape measure
Gravel (footing drainage)
Safety glasses & work gloves
Diagram simplified for clarity (not to scale, 1 line post and 2 terminal posts shown regardless of actual count) — terminal posts are drawn thicker, matching the real two-post-type system.
What Is a Chain-Link Fence Calculator?
A chain-link fence calculator finds the number of line posts, terminal posts, fabric (mesh) rolls, top rail sections, and tension wire needed to build a chain-link fence, plus the concrete needed for post footings — from your fence length and height. It applies the same on-center spacing formula used for wood fence posts, adapted for chain-link's round posts and its distinct line-post/terminal-post system.
This calculator computes material quantities only. It does not verify property line/setback compliance, local fence-height ordinances, or structural post adequacy for wind load.
Why line posts and terminal posts are different:
- Line (intermediate) posts run along the fence, tensioned by fabric on both sides — they can be a lighter, smaller-diameter post
- Terminal posts sit at the run's ends, corners, and gates, carrying the fabric's full tension in one direction — they're always the larger, heavier post
- Every gate adds its own pair of terminal posts, since a gate opening can't share a mid-span line post with the adjoining fence
- Post bury depth always defers to your local frost line, which can require a much deeper hole than the height-based rule of thumb gives
Chain-Link Fence Calculator Formula: How Is It Determined?
Post, fabric, rail, and wire quantities, plus footing volume, calculated separately and combined into a material takeoff.
Step 1 — Posts & Footings
Total Posts = max(2, ceil(Fence Length / Post Spacing) + 1) + 2 per gate
Terminal Posts = 2 (run ends) + 2 per gate; Line Posts = Total Posts - Terminal Posts
Buried Depth = Fence Height / 2 (derived from "bury 1/3 of total post length")
Concrete per Post = Hole Volume - Post's Own ROUND Cross-Section Volume
Post count follows the same "one per spacing, minimum 2" formula used for wood fence posts elsewhere on this site — only the split into line vs. terminal posts, and the round (not square) cross-section for concrete, are chain-link-specific. Buried depth is the same rule of thumb used for wood fence posts — your LOCAL FROST LINE always governs when it's deeper.
Step 2 — Fabric (Mesh)
Fabric Run Length = Fence Length - Total Gate Width
Fabric Rolls = ceil((Fabric Run Length x (1 + Waste %)) / 50 ft per roll)
Fabric is sold in full 50 ft rolls only — a partial roll can't be ordered, so the run length (with waste applied) is always rounded UP to the next whole roll.
Step 3 — Top Rail, Tension Wire & Ties
Top Rail Sections = ceil((Fabric Run Length x (1 + Waste %)) / Rail Length) + Gates
Tension Wire Length = Fabric Run Length x (1 + Waste %)
Tie Wires = ceil((Fabric Run Length x (1 + Waste %) x 12) / 24)
Top rail and bottom tension wire are each independently optional (toggle either on or off to match your actual installation plan). Tie wires follow the widely-used "every 24 inches" spacing rule for fastening fabric to rail and posts.
Worked Example
This example walks through your current inputs above, using the same steps as the Formula section.
Input Values Used
| Input | Value | Why it is used |
|---|---|---|
| Length / height | 100 ft / 6 ft | Sets post/fabric/rail counts |
| Line spacing / post sizes | 10 ft / 2" line, 2.5" terminal | Sets post count, split, and footing size |
| Top rail / tension wire | 10 ft sections / included | Sets rail section and wire length |
Step 1 — Posts & Footings
| Calculation | Result |
|---|---|
| Sections = ceil(Fence Length / Post Spacing) = ceil(100 / 10) | 10 |
| Total posts = Sections + 1 = 10 + 1 | 11 |
| Terminal posts = 2; Line posts = Total - Terminal = 11 - 2 | 2 terminal / 9 line |
| Buried depth = Fence Height / 2 = 6 / 2; Post length = Height + Buried = 6 + 3.0 | 3.0 ft / 9.0 ft |
| Total concrete = (Line Concrete x Line Posts) + (Terminal Concrete x Terminal Posts) = 6.35 cu ft, packed in 80 lb bags | 11 |
Step 2 & 3 — Fabric, Rail & Wire
| Calculation | Result |
|---|---|
| Fabric run length = Fence Length = 100, +10% waste | 110 ft |
| Fabric rolls = ceil(Run Length / 50 ft) = ceil(110 / 50) | 3 |
| Top rail sections = ceil(Run Length / Rail Length) = ceil(110 / 10) | 11 |
| Tension wire = Run Length (with waste) | 110 ft |
| Tie wires = ceil(Run Length (in) / 24) = ceil(1320 / 24) | 55 |
Therefore, this 100 ft, 6 ft tall chain-link fence needs approximately 11 posts (9 line / 2 terminal), 3 fabric rolls, and 11 bags of concrete.
Essential Checklist+−
Complete these critical checks before approving the work or proceeding to the next construction stage.
✓Layout & Height Inputs+-
- Total fence length confirmed from an actual field measurement or property survey, not assumed
- Property line location and any local setback requirement confirmed before laying out posts
- Fence height confirmed against local ordinance limits for this property (often lower at front vs. back/side yards)
- Utility locate service called (811 or local equivalent) before digging any post holes
✓Post & Footing Depth+-
- Computed post bury depth checked against the ACTUAL local frost line, not just the rule-of-thumb figure
- Terminal (end/corner/gate) posts confirmed as the larger-diameter size, not accidentally ordered as line posts
✓Installation & Code+-
- Pool-barrier code requirements (self-closing/self-latching gate, minimum height, mesh opening size) checked if enclosing a pool
Full QC Checklist+−
Verification checklist for chain-link fence material takeoffs — covering layout inputs, post/footing depth, fabric/rail/wire quantities, and installation/code confirmation. Use the Essential Checklist for critical checks before finalizing, expand to Full QC Checklist for complete verification.
✓Layout & Height Inputs+-
- Total fence length confirmed from an actual field measurement or property survey, not assumed
- Property line location and any local setback requirement confirmed before laying out posts
- Fence height confirmed against local ordinance limits for this property (often lower at front vs. back/side yards)
- Utility locate service called (811 or local equivalent) before digging any post holes
- Fabric/post coating (galvanized vs. vinyl-coated) confirmed adequate for the actual site exposure
✓Post & Footing Depth+-
- Computed post bury depth checked against the ACTUAL local frost line, not just the rule-of-thumb figure
- Terminal (end/corner/gate) posts confirmed as the larger-diameter size, not accidentally ordered as line posts
- Footing hole diameter confirmed reasonable for the actual post size and soil conditions
- Concrete footing cure time confirmed before stretching fabric or attaching tension wire/rail
- Every post checked plumb (in both directions) and braced before the concrete sets, not just eyeballed
✓Fabric, Rail & Wire Quantities+-
- Fabric roll height confirmed to match the actual post height selected, not just assumed
- Fabric stretched tight between terminal posts with a proper come-along/stretcher bar before tying off, not just hand-pulled
- Tie wire spacing (fabric-to-rail and fabric-to-post) confirmed at roughly every 24 inches, not left sparse
- Mesh roll count confirmed as full rolls only (fabric isn't sold in partial-roll lengths)
- Decision on top rail vs. bottom tension wire (or both) confirmed matches the actual installation plan
✓Installation & Code+-
- Gate posts confirmed adequately reinforced (larger post, deeper footing) for the actual gate weight and swing
- Corner and end (terminal) posts confirmed adequately braced — they carry different loads than mid-run line posts
- Pool-barrier code requirements (self-closing/self-latching gate, minimum height, mesh opening size) checked if enclosing a pool
- Local code amendments (HOA color/coating restrictions, barbed-wire-arm rules) checked before finalizing
- Total post/fabric/rail counts reconciled against the actual site layout before ordering material
Chain-Link Fence Reference Tables
Line vs. terminal post sizing by fence height, and fabric rolls by fence length.
| Fence Height | Typical Line Post | Typical Terminal Post |
|---|---|---|
| 3-5 ft | 1-5/8" OD | 2-1/2" OD |
| 6 ft | 2" OD | 2-1/2" OD |
| 7-8 ft | 2" OD (or larger) | 2-1/2" OD (or larger) |
Fabric Rolls by Fence Length (50 ft/roll, no waste)
| Fence Length | Rolls Needed |
|---|---|
| 50 ft | 1 |
| 100 ft | 2 |
| 150 ft | 3 |
| 200 ft | 4 |
| 250 ft | 5 |
| 300 ft | 6 |
When should you use this chain-link fence calculator?
- Planning line post, terminal post, and fabric roll quantities before ordering material for a new chain-link fence.
- Comparing how post spacing (8 ft vs. 10 ft) changes the post count and split for the same run.
- Sizing concrete footings and estimating bag count for post-setting, for both line and terminal posts.
- Budgeting a fence project with gates included in the material count.
- Cross-checking a contractor's fence material quote against an independent estimate.
Quick Fence-Building Tips
- Call 811 (or your local utility locate service) before digging any post holes — every time, even on a property you've dug on before.
- Set terminal posts first, string a line between them, then set line posts to that line for a straight, consistent fence.
- Stretch fabric with a proper come-along and stretcher bar between terminal posts — hand-pulling alone leaves a saggy fence that loosens further over time.
- Tie fabric to the top rail and posts roughly every 24 inches — sparser tying lets fabric sag or pull away over time.
- Add a few inches of gravel at the bottom of each footing hole for drainage — reduces post corrosion at the base over time.
- Consider upsizing or bracing gate posts specifically — they carry more concentrated load than a typical terminal post.
Common Mistakes
- Ordering line posts and terminal posts as the same size — terminal posts need to be the larger, heavier post since they carry the fabric's full tension.
- Setting posts without confirming the local frost line — a shallow footing can heave in freeze-thaw cycles.
- Not checking the property line/setback before laying out posts, leading to a fence that has to be moved.
- Under-tensioning fabric by hand-pulling instead of using a proper stretcher bar and come-along.
- Spacing tie wires too far apart, letting fabric sag or pull away from the rail/posts over time.
- Attaching fabric/rail before the concrete footing has adequately cured.
- Skipping the utility locate call before digging, risking hitting a buried line.
Limitations
- Standard US residential chain-link fence construction, one straight uniform-height run at a time — a fence with corners needs each straight section (and its own terminal post pair) calculated separately.
- Post bury depth is a rule of thumb (height ÷ 2) — always verify against your local frost line, which governs whenever it's deeper.
- Does not verify property line/setback compliance, local fence-height ordinances, or pool-barrier gate requirements.
- Does not verify structural post adequacy for wind load — taller fences or high-wind sites may need a larger post than this calculator assumes.
- Does not count tie wires' hardware clips, tension bands, rail end caps, or gate hinge/latch hardware beyond the tie wire count and gate count shown.
- Scoped to standard residential-grade fabric gauge (11/11.5 gauge) — heavier commercial/industrial-grade (9 gauge) fabric and posts are not modeled separately.
- Gate posts use the same size as regular terminal posts — consider upsizing or bracing them separately for the extra load a gate concentrates.
Disclaimer: This calculator provides approximate results for planning and estimation purposes only. Actual requirements may vary based on site conditions, materials, workmanship, and local building regulations. Always consult a qualified engineer, architect, or construction professional before making final decisions.