How To Pull Chain Link Fence Posts: Mechanical Advantage & Extraction Guide

Extracting chain link fence posts encased in 80-pound concrete footings requires leveraging vertical mechanical advantage rather than relying on manual labor. By utilizing a high-lift farm jack, a Grade 70 transport chain, and proper point-load distribution, terminal and line posts can be cleanly removed from high-density clay or loam soils. Verifying underground utility locations via 811 prior to applying lifting force prevents dangerous line strikes and structural failures.

Equipment Selection, Site Safety, and Extraction Preparation

Removing galvanised steel line posts (typically 1-5/8 inch outer diameter) and terminal posts (typically 2-3/8 inch outer diameter) requires neutralizing the friction created by surrounding soil and heavy concrete footings. A standard concrete footing cast around a fence post measures 8 to 10 inches in diameter and extends 24 to 36 inches into the earth, weighing between 75 and 150 pounds. Attempting to pull these structures out by hand causes severe musculoskeletal strain and often snaps the hollow steel casing at the ground line.

Site preparation begins with verifying underground utility clearances and gathering industrial-grade equipment capable of applying upward vertical force without slipping or bending the pipe.

Extraction Preparation Checklist

• Essential Lifting Gear & Hardware:
  
  
  • 3.5-Ton Mechanical Farm Jack (Hi-Lift Jack minimum 48-inch height rating)
  • 3/8-Inch Grade 70 Transport Chain (minimum 6-foot length with grab hooks)
  • Heavy-Duty Pipe Clamp or Mechanical Grabber Plate (optional, for smooth pipe grip)
  • 8 lb Sledgehammer and Heavy Digging Bar (San Angelo style, 60-inch)
  • Scrap 4x4 Pressure-Treated Lumber (18-24 inches in length) or 2x10 Structural Plank
  • Personal Protective Equipment: Steel-toe boots, heavy leather work gloves, and impact-rated eye protection
• Mandatory Site Clearances & Standards:
  
  
  • Utility Verification: Call 811 (or local utility locating service) at least 48 to 72 hours prior to disturbing subsurface ground.
  • Hydration Protocol: Presoak the soil surrounding each post 12 to 24 hours prior to extraction to reduce soil friction and break clay suction.
• Project Operational Benchmarks:
  
  
  • Target Execution Speed: 15 to 25 minutes per concrete-encased post using mechanical jacking.
  • Equipment Budget: $0 to $45 for tool rentals; $120 to $180 for permanent tool purchase.

Step-by-Step Chain Link Post Demolition Procedure

Step 1: Disconnect Top Rails, Fabric, and Tension Hardware

Before applying vertical force to any fence post, you must isolate it from the rest of the fence assembly. Leaving horizontal top rails or tensioned chain link wire connected creates lateral strain that will bend the post, snap hardware under tension, or tip the lifting jack.

1. Unclip the tie wires securing the chain link fabric to the top rail and line posts using linesman pliers.
2. Unbolt the tension bands and brace bands from the terminal or corner posts using a 7/16-inch or 1/2-inch deep socket wrench.
3. Slide the top rail pipe out of the loop caps (line post caps) and remove the caps from the top of each post.
4. If carriage bolts are rusted solid, cut through them cleanly using an angle grinder equipped with a metal cut-off wheel or a reciprocating saw with a bi-metal blade.

Warning: Chain link fabric under high tension can snap back violently when unbolted from a terminal post. Always secure the chain link mesh with a temporary tension bar and come-along winch before loosening tension band bolts.

Step 2: Excavate the Perimeter and Relief Trench

Soil friction acts as a secondary anchor around the concrete footing. Removing the top layer of compacted earth breaks the initial ground seal and provides a flat surface for your mechanical equipment.

1. Clear away grass, roots, and loose topsoil in a 12-inch radius around the galvanized metal post using a spade shovel.
2. Dig a shallow 4-inch deep trench directly around the perimeter of the concrete footing to expose the top collar of the concrete slug.
3. Insert a 60-inch steel digging bar vertically down along the outside edge of the concrete footing and lever it back and forth. This creates micro-fractures in the surrounding soil wall, breaking hydrostatic suction.

Pro-Tip: Pour 3 to 5 gallons of water into the relief trench around the concrete collar 30 minutes before lifting. The water lubricates the outer edge of the concrete mass against clay-heavy soils.

Step 3: Rig the Chain and Set the Mechanical Jack Footing

The key to lifting a smooth, round steel post without slipping lies in using a binding chain hitch or a friction block. Standard chain wrapped loosely around a pipe will slide up the metal shaft when upward force is applied.

1. Position a thick piece of scrap lumber (such as a 2x10 board or 4x4 block) directly adjacent to the concrete footing, roughly 4 to 6 inches away from the post casing. This board distributes the downward vector load of the jack and prevents the foot of the tool from sinking into soft dirt.
2. Set the base plate of the farm jack flat on top of the wooden support block, ensuring the vertical steel I-beam of the jack is plumb (exactly 90 degrees relative to the ground).
3. Wrap a 3/8-inch Grade 70 chain around the base of the metal post, just above the concrete footing or ground line. Use a Clove Hitch or a Pipe Hitch knot by wrapping the chain tightly around the pipe pipe at least 3 to 4 times, threading the tail end back through the tight loops.
4. Hook the free end of the chain securely into the lifting nose (clevis) of the farm jack, keeping the slack in the chain as minimal as possible.

[ Farm Jack ] || || <-- Steel Shaft +--------||--------+ | || | | (Clevis) | | || | | / \ | <-- 3/8" Grade 70 Chain | / \ | (Wrapped 4x in Pipe Hitch) [4x4 Wood Base Block] ============================= Ground Line | || | | [Concrete] | | [ Footing] | | || |

Pro-Tip: If the pipe is extremely smooth or wet, attach a heavy-duty 2-inch two-piece split-ring pipe clamp or a vice-grip locking clamp directly above the chain wrap. The clamp acts as a mechanical stop, preventing the chain loops from sliding upward under load.

Step 4: Execute Vertical Extraction via Mechanical Advantage

Once the rigging is locked down, apply controlled vertical pressure. Farm jacks generate up to 7,000 pounds of lifting force; keeping your body clear of the handle stroke path is critical.

1. Switch the farm jack directional latch to the "UP" position.
2. Operate the jack handle in full, smooth vertical strokes. As the lifting clevis rises, the chain wraps will bite tightly into the galvanized pipe.
3. Continue jacking until you hear or feel a distinct "pop"—this signals that the concrete footing has separated from the surrounding earth matrix.
4. Pump the handle continuously until the concrete slug rises completely clear of the excavation hole. If the jack reaches its maximum height before the footing is out, lower the clevis, slide the chain wrap down the post, re-tighten, and repeat the lifting process.

Warning: Never lean your body directly over the operating handle of a farm jack. If the internal climbing pins fail to seat under high tension, the handle can kick back upward violently with force capable of causing severe facial or cranial injury.

Step 5: Backfill, Compact, and Remediate the Hole

Leaving open post holes creates structural collapse risks for adjacent structures and severe tripping hazards. Immediate remediation is required to stabilize the ground.

1. Disconnect the chain from the extracted post assembly and roll the pipe and concrete footing away from the work area.
2. Clear any loose concrete fragments or sharp gravel from the bottom of the open pit.
3. Fill the empty hole with clean crushed aggregate (3/4-inch minus gravel) or structural fill dirt in 6-inch horizontal layers (lifts).
4. Compact each 6-inch lift using the blunt end of a digging bar or a manual hand tamper before adding the next layer of soil. Top the final 2 inches with native topsoil and compact firmly.

Mechanical Extraction Specifications and Equipment Matrix

Selecting the proper extraction method depends on soil density, accessible work space, available machinery, and the total quantity of posts requiring removal.

Field Troubleshooting and Structural Failure Solutions

Scenario 1: Galvanized Post Shears Off at Soil Line Leaving Concrete Trapped

• Root Cause: Advanced oxidation (rust) occurs at the soil-to-air interface where water accumulates, weakening 16-gauge structural steel pipe walls over time. When vertical force is applied, the rusted metal tears, leaving the concrete footing submerged in the ground.
• Actionable Fix: Dig a shallow 6-inch trench around the exposed top of the submerged concrete footing. Clear away debris and wrap the Grade 70 chain directly around the concrete mass using a choke hitch. If the concrete lacks a shoulder for the chain to grip, drill a 1/2-inch hole 4 inches deep into the center of the concrete slug using a rotary hammer drill, insert a heavy-duty drop-in wedge anchor, attach an eye bolt, and hook your jack chain directly to the anchor bolt.

Scenario 2: Mechanical Jack Base Sinks Deeply into Wet or Sandy Soil

• Root Cause: Farm jack footplates feature a small surface area (roughly 24 square inches). Under a 2,000 lb lifting load, the point-load pressure exceeds the ultimate bearing capacity of soft, wet, or sandy ground, driving the tool into the earth instead of raising the post.
• Actionable Fix: Expand the load distribution footprint. Cut a 18x18-inch pad out of 3/4-inch exterior grade plywood, or lay two structural 2x10 pressure-treated lumber planks side-by-side perpendicular to the jack. Place the metal jack foot directly in the center of the wooden platform to distribute the downward force across a wider surface area.

Scenario 3: Chain Continuously Slips Upward Along Smooth Galvanized Pipe

• Root Cause: Zinc-coated galvanized steel possesses a low coefficient of friction. A simple chain loop collapses inward but lacks sufficient mechanical bite to overcome the heavy weight of an intact concrete footing.
• Actionable Fix: Drill a 1/2-inch hole straight through both walls of the hollow steel fence post approximately 6 inches above the ground line using a high-speed cobalt drill bit. Insert a Grade 8 steel bolt (1/2-inch diameter by 4-inch length) through the hole and secure it with a nut. Position your chain wrap directly underneath this cross-bolt; the bolt acts as an unyielding physical stop that prevents the chain from sliding up during extraction.

Scenario 4: Clay Soil Vacuum Lock Holds Footing Rigid Despite Max Jack Tension

• Root Cause: Dense, wet clay forms an airtight seal against smooth, poured-in-place concrete footings, creating strong hydrostatic suction that resists vertical displacement.
• Actionable Fix: Relieve the vacuum seal mechanically. Drive a 4-foot piece of #4 steel rebar straight down along the side of the concrete footing using your sledgehammer until it hits the bottom of the excavation depth. Pull the rebar out to leave a narrow air channel. Pour a mixture of water and liquid dish soap down the channel to break the surface tension, then apply upward pressure with the jack.

Frequently Asked Questions

Can you pull chain link fence posts out with a pickup truck?

Pulling posts horizontally or diagonally with a vehicle is strongly discouraged because it creates severe lateral load vectors that bend the steel post at ground level without lifting the heavy concrete footing. Additionally, tow straps or chains can snap under vehicle torque, turning into dangerous projectiles that cause serious vehicle damage or personal injury.

How much does a concrete fence post footing typically weigh?

An average residential chain link post concrete footing (8 inches in diameter by 24 to 30 inches deep) weighs between 75 and 110 pounds. Corner post footings, which are poured larger (10 to 12 inches in diameter by 36 inches deep), often weigh between 150 and 220 pounds.

Is it better to pull fence posts when the ground is wet or dry?

Ground that is thoroughly moist—but not saturated into standing mud—provides the easiest extraction conditions. Moist soil shrinks away from concrete footings slightly and exhibits significantly lower friction than bone-dry, compacted soil. Dry clay acts like solid rock, making post extraction exceptionally difficult without prior soaking.

Should I cut off old fence posts or pull the concrete out completely?

If you plan to install a new fence along the exact same property line, you must pull the existing concrete footings out completely. Leaving old concrete blocks buried in the ground creates underground obstructions that prevent digging new post holes in the required layout alignment.

Upgrade Your Boundary Lines with Industrial-Grade Fencing Hardware

Once your old chain link posts and footings are safely removed, ensure your next fence installation is built to last using high-performance components. Explore heavy-duty galvanized structural pipe, industrial-grade tension hardware, and commercial post setting supplies designed for maximum longevity.