Chicken Coop Planner & Build Guide

Work out real space requirements, itemised materials, tools, and cost for laying hens, meat birds, or both together — then build it, with a full step-by-step method across three real budget tiers.

Every chicken coop guide tells you a rough square-footage number and calls it done. This one goes further: tell it how many layers and meat birds you're planning, and it works out the actual coop and run dimensions, the real quantities of materials you'll need to buy, the tools required, and a genuine build sequence — priced across three budget tiers with fencing costed separately, since the run's predator-proofing is where most of the real cost (and most of the real risk) actually sits.

Space, Materials & Cost Calculator

Space figures are minimums drawn from widely-used poultry husbandry guidance, not a guarantee — more space is always better for bird health and egg production. This is general information, not a substitute for checking your local council's rules on keeping poultry.

Materials You'll Actually Need (Quantities, Not Just a Price)

Calculated directly from your numbers above — these are real quantities to take to a hardware store, not a vague estimate.

Can Layers and Meat Birds Share a Coop?

Genuinely, it depends. It's physically possible to house them in the same structure, and many backyard keepers do it successfully, but it's not a simple yes — the two real issues are feed and behaviour. Layer feed and meat-bird (grower/finisher) feed are formulated differently, and neither type does well on the other's diet long-term. Meat birds also grow fast enough that they can crowd more active laying hens away from feeders if everyone's sharing one station. The practical fix is a partitioned feeding area within the same run, or entirely separate feeders positioned apart from each other, rather than assuming one feed and one feeder will suit both. Meat birds also shouldn't be given elevated perches the way layers should — their heavier, faster-grown bodies are more prone to leg and hip injury jumping down from a roost.

Tools You'll Need

Beyond the materials themselves, these are the tools that make the build genuinely manageable rather than a struggle:

• Tape measure and a spirit level
• Circular saw or hand saw for cutting timber
• Cordless drill/driver with mixed bits
• Staple gun (for fixing mesh and netting to timber)
• Wire cutters or tin snips (for cutting mesh to size)
• Post-hole shovel or auger, if setting corner posts in the ground
• Hammer, safety glasses, and heavy-duty gloves (mesh edges are sharp)
• String line and stakes for marking out the run perimeter before digging

Three Budget Tiers, Including Fencing Costed Separately

Fencing and predator-proofing is usually the single biggest cost swing between a cheap coop and a genuinely secure one — which is why it's broken out on its own below rather than folded into one blended number.

All figures are new-materials estimates in 2026 AUD, based on the dimensions calculated above. Automatic solar coop doors (Premium tier) are a genuine, widely-available product category — worth it mainly for keepers who can't reliably be home at dusk/dawn to manually secure the coop.

Step-by-Step Build Method

A genuine build sequence for a predator-resistant coop and attached run, in the order that actually avoids rework. Adjust measurements based on your calculated dimensions above.

1. Mark out and prepare the site. Use a string line and stakes to mark the full footprint — coop and run together — and check it's level. Clear grass and debris from the coop footprint specifically; a raised, dry base matters more for the coop than the run.
2. Build the coop frame. Construct the timber frame first, treated pine is the standard, affordable choice, raised slightly off the ground on bearers to prevent moisture and rot getting into the floor.
3. Clad and roof the coop. Fix cladding to the frame walls, then fit the roof with a slight slope for water runoff. Leave gaps high on the walls for ventilation — heat and ammonia build-up are a bigger problem than cold in most of Australia.
4. Fit nesting boxes and perches. One nesting box per 4 layers, positioned lower and darker than the perches (hens prefer to sleep higher than they nest). Perches go opposite the boxes, 30–40cm off the floor for standard breeds — skip perches entirely in a meat-bird-only section.
5. Dig and fit the buried predator apron. This is the step most backyard builds skip, and the one that actually stops foxes. Dig a trench around the full run perimeter at least 30cm deep, and fix mesh so it runs down the trench and bends outward along the bottom, angled away from the run — a digging predator hits solid mesh before it ever gets under the fence line.
6. Fit the upright run fencing. Fix mesh upright to at least 1.8m high around the full perimeter, overlapping and firmly stapled to fence posts or the coop structure itself.
7. Fit overhead netting. Cover the run overhead with netting or mesh — aerial predators (hawks, owls) are a real risk in open runs, particularly for smaller breeds.
8. Fit doors, latches, and do a final walk-around. Use a genuinely secure, predator-proof latch — a simple hook is not enough, foxes and dogs can both learn to open basic latches. Walk the entire perimeter checking for gaps before introducing any birds.

Frequently Asked Questions

For everything else involved in keeping chickens day to day — feeding, health, and what to actually expect from layers versus meat birds — see our full Poultry animal guides, and if you're weighing chickens against ducks or quail for your block, our honest comparison is worth reading first.