A chicken net fence should look stable, straight, and properly supported.
However, this does not mean the net should be pulled as tightly as possible.
Many installation problems begin when workers try to remove every small curve or movement from the fence. They stretch the net strongly between posts until the mesh becomes rigid and the cable ties are under constant tension.
The result may look neat at first.
But over time, an excessively tight installation can lead to:
Reduced fence height
Distorted mesh openings
Broken cable ties
Leaning posts
Torn knots
Corner damage
Faster wear
Chicken netting is a flexible mesh structure. It performs best when it is supported evenly and held with controlled tension, while still retaining enough movement to respond to wind, temperature changes, animal contact, and ground movement.
The correct goal is not maximum tightness.
It is balanced stability.
Chicken netting is made from interconnected twines and knots.
Unlike a rigid metal panel, it can:
Bend
Fold
Stretch
Change mesh angle
This flexibility makes it practical for farms, gardens, poultry runs, and irregular terrain.
If the net is pulled completely tight, much of this useful movement is removed.
A secure fence is:
Properly supported
Correctly anchored
Evenly attached
Stable under normal movement
A completely tight fence is under high continuous tension.
The first condition is desirable.
The second can create unnecessary stress.
Many knotted chicken nets use diamond-shaped mesh.
When the net is stretched horizontally, each diamond becomes:
Wider
Shorter
This changes the overall dimensions of the fence.
The twine has not disappeared, but the geometry has changed.
A roll advertised as 6FT, 7FT, or 8FT may appear shorter after installation if it is pulled too far along the fence line.
As the mesh opens wider horizontally, the vertical dimension decreases.
This can create:
Lower effective fence height
Gaps near the ground
Misalignment with the top support rope
Flexible diamond mesh creates a tradeoff.
Pulling the roll toward its maximum horizontal extension usually reduces its height.
Stretching it vertically makes it taller but reduces horizontal coverage.
A correct installation balances both dimensions.
Cable ties and clips should mainly hold the net in position.
When the net is pulled completely tight, they also carry continuous structural tension.
This may cause them to:
Crack
Stretch
Slip
Break at the locking head
The net may remain intact while the fasteners fail first.
When one highly loaded tie breaks, nearby connections must carry the additional force.
This can create a chain reaction:
One Tie Breaks → Neighboring Ties Overload → Fence Section Loosens → More Ties Fail
Balanced tension reduces this risk.
An installer may pull each tie extremely hard to make the net look firm.
The narrow tie then presses into the twine.
Repeated wind movement can turn that pressure point into:
Abrasion
Flattening
Fiber damage
Local tearing
Fasteners should secure the net without crushing it.
Horizontal tension is transferred into the end and corner posts.
If the force is too high, posts may:
Lean
Bend
Loosen in the soil
Pull toward the fence line
The installer may then tighten the net again, making the problem worse.
At a corner, two fence lines pull on the same support.
A completely tight installation may create strong combined tension.
Weak corner posts can shift, causing:
Distorted mesh
Uneven top lines
Loose adjacent sections
Corners should be braced rather than controlled through extreme net tension.
Posts installed in soft, sandy, or wet ground may move under continuous pulling force.
Heavy rain can further reduce soil stability.
A tight net may gradually pull posts out of alignment.
Stronger foundations and moderate tension are more reliable.
Chicken net allows air to pass through, but it still experiences wind pressure.
If the fence is already highly tensioned, wind load is added to that existing stress.
The net has less ability to move and absorb the force.
This increases pressure at:
Fasteners
Knots
Posts
Corners
Controlled flexibility allows the fence to move slightly under wind and then return.
This can reduce sudden peak loads.
The fence should not flap loosely, but it should also not behave like a rigid sheet.
The most damaging effect is often not one strong pull.
It is thousands of repeated cycles:
Fence moves outward
Fence returns
Fence moves again
When the net is overstretched, these cycles act strongly on the same attachment points.
A tall fence exposes more surface area to:
Wind
Vegetation
Animal contact
Self-weight
An 8FT or 9FT net should not be stabilized simply by pulling harder.
It usually needs:
Stronger posts
A top support rope
More attachment points
Secure bottom anchoring
A heavy-duty net may use:
Thicker twine
More strands
Larger knots
Greater unit weight
It may resist abrasion better, but it also places more load on the support structure.
Its strength does not make extreme stretching safe.
Lightweight netting is flexible and easy to pull.
This may tempt installers to extend it too far to cover a longer fence line.
The result may be a low, distorted fence with highly loaded fasteners.
Use the planned dimensions rather than maximum hand-pulled length.
As the net is stretched, the opening may become wider in one direction.
This can affect poultry containment.
A mesh suitable for adult hens may become less suitable for smaller birds if it is opened excessively.
Young birds can pass through openings that would contain adult chickens.
If the net is pulled too tightly and the mesh widens, the risk of escape increases.
Mesh size should be evaluated under the actual installation condition.
Knots hold neighboring twines together and maintain mesh geometry.
Excessive tension may cause them to:
Tighten unevenly
Shift
Distort
Wear against nearby strands
A damaged knot can affect several surrounding openings.
Heavy-duty netting may have larger knots.
However, if the whole fence is preloaded strongly, those knots still experience continuous stress.
Bigger knots provide material, not unlimited resistance.
If a net is pressed tightly against:
Bamboo
Rough wood
Rusted metal
Concrete
small movements create strong abrasion.
A slightly supported clearance or smooth contact surface reduces wear.
A sharp nail, wire end, or split bamboo surface may not immediately cut loose netting.
Under high tension, the twine is pressed firmly against that edge.
Even small movement can begin a cutting action.
Grass and vines may grow through the net.
They add:
Weight
Wind resistance
Moisture
Downward pull
An already tight fence has little spare capacity to handle this additional load.
Plants often accumulate near the upper section.
Their weight may:
Sag the top line
Overload cable ties
Pull mesh out of shape
Remove vegetation regularly rather than compensating by tightening the fence.
Outdoor ground is not perfectly stable.
It may change because of:
Rain
Drying
Erosion
Animal activity
Post settlement
A completely tight installation cannot adapt easily to these changes.
When soil washes away, ground anchors or buried sections may shift.
This changes the tension between the top and bottom of the fence.
A net with some controlled flexibility can tolerate small movement better than a rigidly stretched panel.
One post may sink slightly while another remains stable.
If the net is extremely tight, this difference creates immediate uneven stress.
The mesh may become distorted near the lower post.
Plastic netting, rope, cable ties, and posts may respond differently to heat and cooling.
The fence may feel tighter at one time and looser at another.
Extreme initial tension leaves less room for these normal changes.
Environmental changes may increase tension unexpectedly.
For example:
Wood posts shift
Support rope contracts or settles
Ground moves
Wet vegetation adds weight
The installer should leave a reasonable operating margin.
The solution is not to leave the net hanging freely.
Excessively loose netting can:
Sag
Fold
Flap
Rub against itself
Create escape gaps
The correct condition lies between loose and completely tight.
A well-installed net should have:
Regular mesh openings
A reasonably straight fence line
Limited sagging
Small controlled movement
It should not look highly elongated or rigid.
The main stability should come from the support frame.
This includes:
End posts
Corner posts
Intermediate posts
Bracing
Do not expect tension in the net to compensate for weak structural support.
Wide gaps between posts allow more sagging and wind movement.
Installers often respond by pulling the net harder.
Using suitable post spacing provides better support without excessive tension.
Spacing depends on:
Fence height
Net weight
Wind exposure
Soil strength
Installation duration
Post material
Permanent and exposed installations normally need more support than short, temporary barriers.
A continuous top rope helps carry the net’s upper weight.
It can:
Reduce sagging
Maintain fence height
Share load across posts
Reduce dependence on individual ties
The rope should be firm, not excessively tensioned.
If the support rope is pulled extremely tight, it can bend the end and corner posts inward.
It should create a stable upper line while preserving structural balance.
Recheck post alignment during tensioning.
Very tall fences may move in the middle of the panel.
A horizontal middle rope can help control:
Bulging
Flapping
Sliding
Uneven pressure
This is safer than trying to remove all movement through horizontal stretching.
The bottom of the fence should be stabilized using suitable methods such as:
Ground staples
Bottom rope
Buried edge
Ground apron
Base board
Do not use extreme horizontal tension to hide an unsecured bottom edge.
If soil erosion or uneven ground creates a gap, pulling the net downward may distort the entire panel.
Correct the ground or add local reinforcement instead.
A fence installed across a slope or depression should follow the ground carefully.
Trying to maintain one rigid straight line can create:
Bottom gaps
Tight high points
Distorted mesh
Uneven height
Segment the installation where necessary.
If the fence feels unstable, add suitable attachment points.
Evenly spaced fasteners distribute load more effectively than stretching the whole roll harder.
Do not fix tall netting only at the top and bottom of the post.
Use several vertical connections to control the panel.
This reduces sliding and local stress.
Cable ties should hold the net close to the post or rope.
They do not need to crush the twine.
Leave enough space to avoid severe pinching while preventing uncontrolled movement.
Continuous rope lacing may distribute force across more mesh openings than a small number of individual ties.
This can be useful for:
Long fences
Tall netting
Permanent installations
The lacing should also use moderate tension.
Where two rolls meet, the overlap is thicker and heavier.
Do not stretch the joined section tightly in opposite directions.
Attach both rolls to healthy support points and reinforce the overlap evenly.
A gate should not rely on chicken net tension to remain square.
Use a proper frame and strong gate posts.
The nearby net can then be attached with moderate tension.
If a corner feels unstable, add:
Diagonal bracing
Stronger posts
Better anchors
Do not solve the problem by pulling both fence lines harder.
Before installing the entire roll, open a short section between two posts.
Check:
Mesh shape
Fence height
Horizontal coverage
Fastener position
This helps establish the correct tension.
As the net is stretched horizontally, watch the vertical dimension.
Stop increasing tension if:
Height drops too much
Mesh becomes unusually wide
Posts begin to lean
Fasteners become highly loaded
Keep a small section less tensioned for comparison.
If the installed mesh is much wider and shorter, the fence may be overstretched.
This is an easy visual check.
The mesh should generally remain balanced and consistent.
Warning signs include:
Very flat diamonds
Long horizontal openings
Twisted rows
Uneven mesh angles
These may indicate excessive or uneven tension.
Over-tightening is not the only problem.
A fence can be tight near posts but sag in the middle because of wide spacing or weak top support.
Inspect the full span rather than only the attachment points.
Rope, knots, soil, and posts may settle during the first days.
Return to inspect:
Tension
Height
Post alignment
Fasteners
Ground anchors
Make small corrections rather than applying extreme retensioning.
Wind can loosen some sections and tighten others.
Check:
Corners
Gate areas
Top rope
Long spans
Exposed posts
Redistribute support where necessary.
Rain may soften soil and move anchors.
If posts lean, do not simply tighten the net again.
Correct the support system first.
Warning signs include:
Mesh openings unusually wide
Fence height lower than expected
End posts leaning inward
Cable ties cutting into twine
Knots visibly distorted
No movement when wind pushes the net
Repeated tie failure
These conditions suggest the tension should be reduced or redistributed.
The net may need additional support if it:
Sags heavily
Flaps strongly
Folds near the ground
Slides down posts
Creates escape gaps
Add posts, ropes, ties, or anchors before simply pulling harder.
When a fence is unstable, identify what is missing:
More posts
Stronger corners
Top rope
Middle support
Bottom anchoring
Better fastener spacing
Structural improvements are more reliable than maximum stretching.
Chicken net cannot perform alone.
A durable fence depends on:
Netting + Posts + Braces + Support Ropes + Fasteners + Ground Anchors
The role of the net is to form the barrier.
The role of the support structure is to hold that barrier in the correct shape.
Before installation:
✔ Confirm the required fence height and length
✔ Inspect the ground and wind exposure
✔ Install strong end and corner posts
✔ Select suitable post spacing
✔ Prepare top support for tall netting
✔ Remove sharp contact surfaces
During installation:
✔ Fully unfold the net
✔ Remove twists and compressed folds
✔ Test a short section first
✔ Use moderate horizontal tension
✔ Keep the mesh shape balanced
✔ Watch the installed height
✔ Attach the net at regular intervals
✔ Avoid crushing twine with cable ties
✔ Secure the bottom independently
✔ Brace corners instead of pulling harder
After installation:
✔ Check mesh shape at several locations
✔ Confirm posts remain upright
✔ Inspect the top and bottom edges
✔ Recheck after initial settling
✔ Inspect after strong wind and heavy rain
✔ Remove heavy vegetation regularly
Chicken net should not be pulled completely tight because excessive tension can reduce its height, distort its mesh, overload fasteners, and pull posts out of alignment.
A properly installed fence should be:
Firm
Evenly supported
Secure at the top and bottom
Able to move slightly under changing conditions
The key principle is:
Support the Net—Do Not Force It Into Rigidity.
The most reliable installation combines:
Moderate Tension + Suitable Post Spacing + Strong Corners + Top Support + Even Fastener Spacing + Secure Bottom Anchoring
At PL Fishery, we manufacture regular and heavy-duty PE chicken net, knotted poultry netting, garden protection net, fishing nets, aquaculture netting, and outdoor ropes for wholesale and customized projects.
Need to purchase or customize chicken net with a specific mesh size, strand construction, height, length, unit weight, color, packaging, or installation requirement? Contact PL Fishery with your fence dimensions and application details, and our factory team can help recommend a suitable netting specification.
