You don’t need a $90 kit to raise chicks. A plastic tote, a big cardboard box, a galvanized stock tank or the dog crate sitting in your garage will all work as a brooder, as long as it hits a few numbers. Think half a square foot per chick for the first two weeks, walls 12 to 18 inches tall and heat at one end that the chicks can walk away from.
I’ve raised batches in a tote and in a stock tank. I’ve also fished a chick off the garage floor after it cleared a wall I swore was tall enough. So this one’s about the build: what each container needs done to it before the chicks show up, and where each one runs out.
If you’re still deciding what to buy, start with my chick brooder setup post. This is for the person already standing in the garage with a tote and a drill.
The Numbers Every Homemade Brooder Has to Hit
Every build below gets checked against the same four numbers. I didn’t invent them. They come from the University of Florida’s extension guide to baby chicks and the University of Missouri’s guide to brooding, and they match what I’ve seen in my own garage.
Space comes first. Florida’s rule of thumb is half a square foot per chick for the first two weeks. To check a container, measure the floor in inches, multiply length by width and divide by 144. A floor that’s 30 by 18 inches works out to 3.75 square feet, which is room for 7 chicks. For a while, anyway.
Walls next. Florida wants side walls or a draft shield at least 12 to 18 inches tall. Build to 18. Then put a lid on it anyway, kinda like insurance, because chicks start hopping and testing their wings at around five days old.
Then heat. Florida says newly hatched chicks need 95°F for the first week, and after that they can take about 5°F less each week. Missouri says the same: drop it 5 degrees a week. The part people skip is where the heat goes. It sits at one end or over the middle, never across the whole floor, so a chick that’s too warm has somewhere to go.
Last, the floor. Missouri’s guide says never to house chicks on smooth, slick surfaces like flat cardboard or newspaper, because it leads to leg problems. Florida says shavings should be at least one to two inches thick. So whatever you build, the bottom gets bedding. Never bare plastic.
The Tote Brooder: $15 and One Afternoon
A 110-quart plastic tote costs about $15 at a big-box store, and it’s the brooder most of us start with. It holds 4 to 6 chicks comfortably for roughly two weeks. After that it’s crowded, it smells and somebody’s always standing in the water.
Here’s how I’d build one. Cut the middle out of the lid with a utility knife and leave a rim about 2 inches wide all the way around. Lay half-inch hardware cloth over the hole and fasten it with zip ties, or with short bolts and fender washers if you want it to outlive the batch. Now you’ve got a lid that lets heat and moisture out and keeps a cat’s paw out.
Don’t use chicken wire for that lid. Hobby Farms makes the case plainly: small rodents walk right through those big openings, and a raccoon with a little ambition can chew through the wire. Hardware cloth costs more per foot. It’s worth every penny.
Heat is where a tote gets risky. A clamp lamp hanging off a plastic rim is a setup I won’t run, and I’ll get to why in the heat section. In a tote I use a small heat plate at one end. The other end stays cool, and that’s where the waterer goes.
One more thing. Turns out a tote’s floor is slick, which is exactly the surface Missouri warns about. Put down an inch or two of pine shavings before the first chick goes in.
The Cardboard Box Brooder: Good for Days, Not Weeks
Florida’s guide counts a cardboard box as a brooder if it’s set up to handle chicks, and for 3 or 4 birds it works. Ask the store for the biggest appliance box they’ve got. Tape the seams, fold the top flaps up instead of cutting them off, and you’ve gained a few inches of wall for free.
Cardboard has two problems, though. It soaks up water and droppings, so by the end of the first week the floor’s damp and the corners stink. And it burns. Florida tells you straight out to keep the bulb a safe distance from the box so it doesn’t start a fire. With cardboard I wouldn’t run a heat lamp at all.
So I treat a box as a holding pen. It’s where the chicks spend their first few days while the real brooder gets finished. If you’re planning on a box for a whole month, honestly, plan on swapping it out at least once.
Cardboard is great for one job, though: the draft guard. Missouri’s guide puts a cardboard ring 12 inches high around the heat for the first week and says a ring 6 feet across holds 50 chicks. You won’t need anything that big for a backyard batch, but a strip of cardboard curled around one end of a crate or a kiddie pool does the same work.
The Stock Tank Brooder: The One I’d Buy Again
A galvanized stock tank runs $50 to $80, and mine’s been through five years and four batches of chicks. It doesn’t soak anything up, it doesn’t burn and you can hose it out in the yard once the birds move to the coop. If you raise more than 6 birds at a time, or you do this every spring, it’s the one I’d tell you to buy.
The build is all lid. Cut four 2x2s to the outside size of the tank, screw them into a frame and staple hardware cloth across it. Then put a screw and a fender washer at each corner, so the staples aren’t the only thing holding the wire. It sits on the rim under its own weight. If you’ve got a cat or a dog who’s taken an interest, add a couple of bungee cords.
Metal sides feel cold in a winter garage, so I bed a tank a little deeper than a tote, about 2 inches of pine shavings, and stir it every day or two. Missouri says to keep litter dry and pull out wet, caked spots as soon as they show up. Nowhere does that matter more than right under the waterer.
Measure before you buy chicks for it.
Use the inside floor, not the size on the sticker, and run it through the half-square-foot rule. Honestly, that one habit would’ve saved me a scramble in week two of my first batch, when six chicks had a tote that fit four.
Dog Crates, Playpens and Kiddie Pools
If you already own a wire dog crate or a kid’s playpen, you’ve got most of a brooder. The catch is the gaps. A day-old chick is small enough to slip through bar spacing that holds a puppy just fine.
So wrap the bottom. Cardboard zip-tied around the lower 12 to 18 inches stops the escapes and doubles as Florida’s draft shield. Lay bedding in the crate pan, put the heat at one end and you’re about done.
A plastic kiddie pool works the same way. Its walls are too low on their own, so you stand a cardboard ring inside it for height, the way Missouri uses its 12-inch chick guard. It’s roomy and it’s cheap. It’s also easy to step in, so park it somewhere the dog doesn’t walk.
Pretty? Nope. Your chicks won’t care.
Heat: Why I Won’t Clamp a Lamp to Plastic or Cardboard
If you do run a heat lamp, Missouri’s guide is specific about it. Use a porcelain socket and a lamp guard, support the reflector so it can’t fall, and keep water from splashing on the lamp or the wiring. It figures one 250-watt lamp for every 50 to 75 chicks, set about 18 inches up the first week and raised 3 inches each week after that.
Now picture that with a tote. A 250-watt bulb, a cheap spring clamp and a plastic rim, over a floor full of dry pine shavings. That’s the setup I don’t run. Florida’s warning about keeping the bulb away from a cardboard box is the same warning, and I’m not betting my garage that plastic does much better.
In anything homemade I use a heat plate. It’s a flat warmer on legs, the chicks walk under it, and you raise the legs as they grow. It takes up floor space, which is one more reason to build bigger than you think you need.
Whatever the heat is, the chicks will tell you if you got it right. Florida’s guide says they huddle right under the heat when they’re cold, and move to the edges away from it when they’re too hot. When it’s right, they spread out and wander the whole floor. Missouri also blocks off corners with cardboard or wire so chicks can’t crowd into them and smother each other, and in a square tote a curl of cardboard in each corner does it. My post on brooder temperature for chicks goes deeper into reading them.
Bedding, Feed and Water Go In Last
Florida says you can start chicks on newspaper for the first day or two and scatter feed on it so they learn to peck. After that the paper comes out, because flat paper on a hard floor causes feet and leg problems, and it holds moisture. Missouri adds that if you cover the litter at all, use rough, crinkled paper, and that mold shows up when paper stays down more than three or four days. I lay paper towels over the shavings for the first two days, then pull them.
For bedding, pine shavings are my pick, and every feed store near me sells them by the bale. Florida also lists rice or oat hulls, ground corn cob and wood chips other than cedar. Missouri says hardwood shavings aren’t recommended, because they can grow a mold that causes a serious infection when chicks or the people caring for them breathe it in. So no cedar, and no hardwood.
The waterer goes at the cool end, away from the heat. Dip each chick’s beak in it as you take it out of the shipping box. Florida calls that first drink extremely important, since chicks arrive thirsty. Once they’re a week old, set the feeder and waterer up on a scrap of board and you’ll scoop a lot less bedding out of both.
Where the Brooder Sits Matters as Much as What It Is
Draft-free doesn’t mean sealed. Florida’s guide says chicks need draft protection but good ventilation the whole time they’re brooding, and that the brooder belongs somewhere safe from predators. In a house, that’s a room the cat can’t get into. In a garage, it’s a real lid, because a rat or a raccoon will find a box of chicks faster than you’d think.
I’ve lost birds to a raccoon. It didn’t happen in a brooder, but it taught me that “they’re inside” isn’t a plan. Hardware cloth on top, a door that shuts and a light you can check from the doorway at night. That’s the whole predator plan for a brooder, and it’s enough.
Plan the way out, too. Chicks outgrow a brooder fast, and the bigger it is, the longer you’ve got. Once they’re feathering out, read when chicks can go outside before the night lows make the call for you.
If I were starting over with six chicks this spring, I’d build the tote this weekend and buy the stock tank before week two. Measure the floor, put hardware cloth on top and keep the heat at one end. The chicks handle the rest, mostly by kicking shavings into the water.
Sources: University of Florida IFAS Extension, “Care of Baby Chicks” (AN170, reviewed November 2024); University of Missouri Extension, “Brooding and Growing Chicks” (G8351); Hobby Farms, “3 Reasons to Stop Using Chicken Wire”.