How to make a DIY incubator tray from chicken wire

A DIY incubator tray made from chicken wire provides a cheap, removable rack for eggs while keeping them above a water reservoir. The tray does not create heat by itself; it sits inside a box incubator and allows air to circulate around the eggs. That distinction matters because even a well-built wire tray will fail if the incubator’s temperature, humidity and turning system are poorly controlled.

Before cutting any wire, decide which birds you plan to hatch. Chicken eggs require less space than the larger eggs of ducks and geese, and quail eggs need finer support. A tray that holds ordinary chicken eggs may allow quail eggs to fall through or allow goose eggs to bridge the mesh and roll. Measure the incubator, inspect its turning mechanism and allow room for the birds you actually intend to hatch.

Australian weather can make incubator management more demanding than the plans suggest. Hot inland summers can raise the internal temperature quickly, while humid coastal areas make it difficult to dry out condensation. Dry regions such as inland New South Wales, Queensland and Western Australia may need extra water in the humidity reservoir. Use metric measurements, provide ventilation and check the incubator for unwanted draughts before filling it with eggs.

Backyard chooks are popular in Melbourne, Brisbane, Perth, Adelaide and regional towns, but local rules differ. Before increasing your flock or selling eggs, check your council’s bylaws and the welfare, food-sale and biosecurity requirements in your state or territory. Restrictions may cover the number of birds, coop placement, egg labelling or moving birds and eggs across state borders.

Choose suitable wire and frame materials

Galvanised hexagonal chicken wire is affordable, readily available and flexible enough to form a shallow tray. Check the aperture before buying it: most chicken eggs will rest securely across 20–25 mm openings, but smaller eggs need finer mesh or an additional smooth support. Test the material with an egg before construction. The egg should sit on the wire rather than drop into or hang between the openings.

Use untreated, well-seasoned timber for the frame, or plywood that has been sealed on both sides and all edges. Avoid timber with strong odours, chemical treatments or peeling paint, especially when heat and humidity will be present. Screwdrivers, staples, corner brackets, washers and a pair of heavy-duty wire cutters are enough to assemble the rack. A removable strip of smooth plastic mesh can prevent movement if the eggs rest poorly on bare chicken wire.

Builders commonly compare rolls from Bunnings, Mitre 10, Home Hardware, rural produce merchants and specialist poultry suppliers. Check the actual width and aperture rather than relying on a vague “poultry wire” label. Used incubators also appear on Facebook Marketplace, Gumtree and at local poultry sales, where sellers may request an instant bank transfer rather than cash. Verify the recipient and settled amount in your banking app; any third-party explanation of PayID withdrawal should never override the information shown by your own bank.

Build a removable tray that fits the incubator

Measure the incubator’s clear internal opening before cutting the timber. For a small desktop incubator, a frame around 300 by 380 mm may suit ordinary chicken eggs, but the incubator’s design matters more than that example. Make the frame slightly narrower than the opening so it can be lifted in and out, and preserve the clearance required by a fan, water pan or automatic turning mechanism.

Stretchen the chicken wire tightly across the timber frame and fasten it every 50–75 mm. Staples are useful for holding the initial tension, but screws through corner plates or timber strips provide a stronger hold. Add one or two narrow cross-supports beneath the mesh if it sags under the weight of the eggs. Keep these supports slim so they do not obstruct airflow beneath the tray.

Attach a shallow inward-facing lip around the edge to stop eggs rolling out when the incubator is opened. A separate 15–20 mm timber bead works better than leaving cut wire ends pointing into the tray. Fold or clip projecting wire ends, check every screw and sand any rough timber. The finished tray should lift out with two hands without twisting, scraping the incubator walls or disturbing the temperature probe.

Control heat, turning and humidity

Place a calibrated thermometer at egg level and a hygrometer near the centre of the incubator rather than beside the heat source. For chicken eggs, a common target is approximately 37.5°C, with moderate humidity during early development and higher humidity during the final three days. Goose and duck eggs need their own temperature, humidity and incubation schedules, so do not copy a chicken setting without checking the species.

The electrical system needs more attention than the wire tray. Australian mains electricity operates at 230–240 volts, so heat lamps, ceramic fittings, switches and fan motors must be suitable for Australian voltage and fitted to an RCD-protected circuit. Keep electrical connections above the water reservoir and separate moving parts from the tray. A thermostat can prevent overheating, but it should be tested with the lid closed because ambient room temperature can hide a poor circulation problem.

Chicken eggs usually need turning several times each day until the final three days before hatching. Mark each egg with a light pencil so its position can be tracked, then rotate it gently without scraping it against the wire. If the incubator has an automatic turner, confirm that the homemade tray will not jam or unbalance the eggs. Candling around day seven to ten in a darkened room with a cool light can reveal developing blood vessels and help identify infertile eggs.

A reliable setup checklist

Test the completed incubator before placing valuable eggs inside. Run it empty for at least 24 hours, including several times when the room temperature changes, and record the minimum and maximum readings. The water pan should not touch the tray, and condensation should drip back into the reservoir rather than onto the electrical parts.

A few practical checks can prevent most avoidable failures:

• Measure the clear opening and test-fit the tray before trimming the frame to size.
• Run an empty heat and humidity cycle, checking the readings at egg level.
• Inspect every wire end, screw and timber edge for sharp or loose projections.
• Mark the eggs and record turning, temperature and humidity in a notebook.
• Keep the incubator, tray and eggs free of strong chemical smells and damp debris.

A short test also reveals whether the incubator needs extra insulation, a different water level or a stronger fan. In cooler weather, place it away from draughty windows and outside walls; in warmer weather, prevent direct sunlight from reaching the box. For a home-built system, stable conditions matter more than chasing a perfect instantaneous reading.

What to remember after the hatch

Leave hatched chicks in the incubator until they are dry and moving actively. Opening the lid too soon can chill them and interrupt the remaining hatch. Once they are ready, move them to a clean, secure brooder with a non-slip floor. A temperature around 32–35°C is suitable during the first week for many chicken chicks, then the heat can be reduced gradually as they grow.

Feed and water must be kept clean during the transition from incubator to brooder. Ducklings and goslings need shallow water dishes because they can drown in deeper containers. For older goslings and ducks, a simple hay feeder can keep long fibre separate from damp bedding and reduce waste. Remove droppings and wet food promptly, particularly during the first fragile days after hatching.

Between batches, wash the tray, remove every loose fibre and disinfect it with a suitable product according to its label. Let it dry completely in a ventilated place, and check the wire again for rust or damage. The chicken wire tray is only the platform for a successful hatch; reliable heat, controlled humidity, clean handling and gentle care are what the eggs truly depend on.