Most flocks are lost on the same kind of night. Not in a gale, not through neglect, but through one edge nobody walked. A fox digs under a bottom rail 40 mm off the ground. A raccoon reaches through a wide opening and takes a pullet by the head. A hawk drops into a run with no lid and is gone before the flock stops panicking.
None of those failures come from carelessness. They come from a run sized by eye instead of by animal. Mesh, posts, gates and roofs all carry numbers, and those numbers move with the predator you have, the breed you keep and the ground you build on.
This guide works through the figures in the order that decides the build: predator, aperture, height, ground detail, material.
Executive Summary
A chicken enclosure is a closed box with four walls, a ground edge and a lid. Leave out any one of those and the weakest predator in your area finds it inside a season.
The specification starts with the local predator set. Foxes and dogs work the base, raccoons and rats work small openings, raptors work the top. Each sets a different number: aperture, wire diameter, skirt depth, roof height.
Wire rope mesh in stainless steel holds panel tension without work-hardening at the joints, keeps a true aperture under load and does not rust through where the ground stays wet. Galvanized welded wire does the same work for two seasons, then loses wire at the base.
The figures below cover a six-bird backyard run and a public paddock.
Size the Run Around Your Predators
Send the flock size, the predator species you have seen and the ground you are building on. We return aperture, wire diameter, wall height, skirt depth and cut-to-size panels with a quote and a lead time.
Request a Panel SpecQuick Answer
A chicken enclosure needs a 25 mm aperture for hens, a 1.2 m to 1.8 m wall, a lid, and a skirt running 300 mm to 450 mm down or 600 mm out. Size the mesh to the predator, not the bird. Foxes test the base, raccoons test the aperture, hawks test the roof.
Key Takeaways
- Aperture keeps birds in and paws out: 25 mm for hens, 12 mm for chicks.
- The skirt decides whether a run survives a fox, not wall height.
- A run without a lid is a hawk feeder however tall the sides are.
- One gap at a gate hinge undoes a whole perimeter.
- Stainless cable costs more per square metre and less per decade.
- Walk the outside first after every storm.
The Predator Decides the Specification
A chicken enclosure is a barrier with four jobs, and most runs do two: keep the flock in, stop digging, stop reaching, stop dropping.
Predator pressure changes street by street. A garden with dogs on three sides faces a different set of animals than a smallholding at the edge of woodland. Size for the worst animal you have seen, because a flock is the reason it returns. The wire fencing options used on smallholdings only work once you know which animal you build against.
Aperture Size for Chicks, Hens and Heavy Breeds
Aperture size is the first number to fix, and it changes as the bird grows. Chicken enclosure mesh aperture for chicks sits at 12 mm to 16 mm. A day-old chick walks through 25 mm, and a chick with its head caught in hex mesh is dead within minutes.
Hens need 25 mm. That holds a standard breed, stops a raccoon pushing a paw past the wrist and still lets you watch the flock from the window. Heavy breeds and ducks take 50 mm, the practical limit before rats treat the panel as a doorway. The woven stainless bird netting range lists aperture and cable pairs that hold those openings under load.
Wire diameter matters as much as the opening. A 25 mm aperture in 1 mm wire deforms when a dog leans on it. In 3 mm stainless cable it keeps its shape.
Raccoon-Proof Chicken Enclosure
A raccoon-proof chicken enclosure is a latch problem before it is a mesh problem. Raccoons open hooks, lift slack wire and work a gap with one paw.
Two changes close that door. Drop to 25 mm on the lower 600 mm of every wall, and fit a two-point latch that needs a lift and a pull at once.
Height, Lid and the Details People Skip
Height gets more attention than it earns. Below 1.8 m it matters, because a frightened hen clears a low wall. Above that you buy wind load, longer posts and a heavier gate for a bird that has stopped trying.
How High Should a Chicken Enclosure Be?
How high should a chicken enclosure be depends on the breed and on whether you plan to walk inside. A heavy breed with a clipped wing stays behind 1.2 m. A leghorn clears 1.5 m from a standing start, so 1.8 m is the working figure. A walk-in run at 2.4 m is a keeper convenience, not a containment upgrade.
Measure that height outside, at the lowest ground point. A 1.8 m panel on a 300 mm fall leaves a 1.5 m wall at the downhill corner, and that is the corner a bird will use.
Stainless Steel Mesh Chicken Run Roof
A stainless steel mesh chicken run roof closes the last open face, and hawk pressure on a backyard flock is the reason to fit one. A red-tailed hawk takes a hen from an open run in daylight, without slowing down.
A 50 mm roof panel at 2.4 m does the job. Tension it to a perimeter cable rather than the posts, because a slack panel ponds water and tears at the first hard frost. Cable and ferrules cost a fraction of raising every wall to roof height.
Ground Detail: Skirt, Apron and Slope
The base is where most flocks are lost. A fox digs through soft ground in under ten minutes, so bury the panel 300 mm to 450 mm or lay a 600 mm apron flat and pin it every 300 mm. The apron suits stony ground, where a trench is not realistic. Either way the skirt has to be the same panel as the wall, turned and continuous.
Chicken Enclosure on a Slope
A chicken enclosure on a slope needs stepped panels, not a stretched one. Pull a straight panel tight across a 400 mm fall and the bottom edge lifts at the high side, which leaves a gap a fox reads as a door.
Set each panel level along its own bay and overlap the step by 100 mm. Water then runs under the run, and litter stays dry at the uphill end.
Housing standards sit alongside welfare law in most markets. WOAH animal welfare standards for poultry housing set out the space, air and inspection expectations a well-built run supports.
Chicken Enclosure Door Latch Gap
Chicken enclosure door latch gap is the failure nobody photographs. A gate hung 20 mm off the post leaves a slot at the hinge side, and a fox widens it with its shoulder over a few nights.
Overlap the frame 50 mm past the post on the closing side, and fit a mesh return on the hinge side. Check the bottom corner with a finger, because it settles first. The predator-proof enclosure build sequence walks the same order, from the ground line up.
Air, Shade and the Working Environment
Dry litter and moving air decide whether the birds use the space you built.
Windbreak Mesh for a Chicken Run
Windbreak mesh for a chicken run blocks the gust and keeps the air moving. A solid board wall stops wind dead and drops a downdraft on the sheltered side, which feels colder than mesh. A 50% to 70% knitted screen cuts ground-level velocity and still lets ammonia out.
Chicken Enclosure Next to a Vegetable Garden
A chicken enclosure next to a vegetable garden can share a fence line and save a gate. The birds work the near bed after harvest; the fence keeps them off seedlings in spring.
Leave 600 mm of clear ground between run and bed, so scratching spoil cannot bury the bottom panel.
Material and Gauge
Cheap mesh fails at the base first, where moisture sits and a dog leans hardest.
Mesh Gauge for a Poultry Enclosure
Mesh gauge for a poultry enclosure splits by height. The lower 600 mm carries the predator load, so 2.5 mm to 3 mm wire, or a 3 mm cable, is the working range. Above that, 1.6 mm to 2 mm keeps birds in and holds a roof panel.
Galvanized welded wire starts cheaper and loses wire at every weld once the zinc is scratched. Stainless steel cable with ferrules holds tension for decades, sheds no coating into the litter and keeps a true aperture after a dog leans on it. Corrosion resistance is the whole argument in a wet climate. Panels from the aviary and poultry mesh catalogue arrive with ferrules set, so the tension you specify is the tension you hang.
The Numbers Side by Side
Two builds cover most of the work: a backyard run and a public paddock.
| Requirement | Backyard run, six hens | Farm park paddock |
|---|---|---|
| Wall height | 1.8 m, or 1.2 m for a heavy clipped breed | 2.4 m walk-in, 2.2 m gate |
| Aperture | 25 mm, plus a 12 mm brooder bay | 25 mm at hand height, 50 mm above 1.5 m |
| Wire or cable | 2.5 mm wire or 3 mm cable on the lower 600 mm | 3 mm cable throughout, ferruled panels |
| Roof | 50 mm panel on a perimeter cable | 50 mm panel, snow load checked |
| Ground detail | 300 mm skirt or 600 mm apron | 450 mm skirt on a concrete edge |
| Gate | Single leaf, two-point latch | Double leaf, catch on both leaves |
| Inspection | Seasonal, plus after every storm | Monthly, written log |
Cost, Cleaning and Inspection
Chicken enclosure cost per square metre splits into mesh, frame and ground detail. The mesh is usually the smallest of the three.
Stainless cable mesh runs higher per square metre than galvanized welded wire. It also lasts three to five times longer at ground level, which turns the comparison around by year four. The two-line fencing layout for mixed properties shows where a poultry panel can borrow structure from a larger fence.
Before you order, fix five numbers in writing:
- Aperture for the smallest bird in the flock.
- Wall height measured at the lowest ground point outside.
- Wire diameter for the lower 600 mm.
- Skirt depth or apron width, matched to the soil you can dig.
- Panel count plus one spare bay.
A chicken enclosure for six hens needs about 1.4 square metres of floor in the house and 1 square metre of run per bird. Those figures set the panel count, and the price.
Cleaning a Wire Mesh Chicken Run
Cleaning a wire mesh chicken run takes about an hour, twice a year. Brush the panel from the top down, clear the base line of leaves and soil, and hose the lower 600 mm where droppings collect. Skip the pressure washer, because it strips a coated finish.
Mobile Chicken Enclosure Mesh Panels
Mobile chicken enclosure mesh panels let a small flock work fresh ground without a permanent fence. Light panels on skids move in ten minutes, and the birds get clean grass and fewer parasites.
The trade is strength. A mobile run cannot carry a buried skirt, so it needs a rigid base frame that sits flat and a lid that clips down.
Chicken Enclosure for a Farm Park
A chicken enclosure for a farm park carries a different load. Visitors lean on panels, children rattle gates, and the flock sees a hundred faces a day. Specify a 2.4 m walk-in height, a 25 mm aperture at hand height, a double gate with a catch on both leaves, and a 3 mm cable that keeps its shape under a leaning visitor.
Check the wire types chosen for different bird enclosures before you fix one gauge across forty bays.
FAQ
No. A chick passes through 25 mm for the first three weeks. Run 12 mm to 16 mm in the brooder bay, then move the flock up at feathering.
Two or three seasons at best. Hexagonal wire carries no tension structure, so it sags between posts, rusts at the ground line and tears where a dog pulls.
Yes, wherever hawks work the area. A 1.8 m wall stops a hen and does nothing to a bird dropping from above. A roof panel on a perimeter cable costs less than a new flock.
450 mm, with a 600 mm apron as the alternative. Sand collapses behind a digging fox, so take the deeper figure and pin every 250 mm.
It can, with a 50 mm aperture and a dry corner reserved for the hens. Ducks need water deep enough to dip their heads, and that water turns litter to mud, so keep the drinker outside.
Get the Aperture Right Before You Order Mesh
Send the run dimensions, the breed and the predators you have seen. We will confirm aperture, cable diameter, panel height, skirt detail and panel count, then quote cut-to-size with a lead time.
Talk to a Mesh Engineer