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Source | Citation share |
|---|---|
 Instructions to Build a Simple Compost Tumbler | Live to Planthttps://livetoplant.com/instructions-to-build-a-simple-compost-tumbler/ | 10.5% |
 How to Build a DIY Compost Tumbler | HGTVhttps://www.hgtv.com/outdoors/landscaping-and-hardscaping/how-to-build-a-diy-compost-tumbler | 5.4% |
DIY composter tumbler - 55 gallon barrel projecthttps://www.youtube.com/watch | 4.8% |
How to Build a Backyard Compost Tumbler - Green Products Ideashttps://greenideasproducts.com/home-improvement/build-backyard-compost-tumbler/ | 4.6% |
 How to Build a DIY Compost Tumbler - Grithttps://www.grit.com/farm-and-garden/do-it-yourself/compost-tumbler-zm0z14mjztel/ | 4.4% |
 Build a compost tumbler - Backwoods Home Magazinehttps://www.backwoodshome.com/build-a-compost-tumbler/ | 3.5% |
 Compost Tumbler : 5 Steps - Instructableshttps://www.instructables.com/Compost-Tumbler/ | 3.3% |
 How to Build a DIY Compost Barrel Tumbler - Family Handymanhttps://www.familyhandyman.com/project/diy-compost-tumbler/ | 2.8% |
Cheap DIY Compost Tumbler - The Prudent Garden -https://theprudentgarden.com/cheap-diy-compost-tumbler/ | 2.7% |
Compost Bin : 6 Steps (with Pictures) - Instructableshttps://www.instructables.com/compost-bin/ | 2.5% |
A simple DIY tumbler can be made from a food-grade plastic barrel, a steel/galvanized pipe axle, and a basic wooden frame. The design below keeps the project fairly inexpensive while giving you good airflow and easy turning.
A number of DIY designs use a pipe through the center of the barrel as the axle and mount the barrel in a wooden sawhorse frame.
Wash it thoroughly and let it dry.
Mark the center of each end of the barrel and drill matching holes just large enough for your axle. Keeping the holes precisely opposite one another helps the barrel rotate smoothly.
Then drill ventilation/drainage holes throughout the barrel. A practical starting point is roughly ¼–½ inch holes spaced several inches apart, with additional holes in the bottom for excess moisture. Published DIY designs vary considerably, so you don't need an exact hole pattern.
On the side of the barrel, mark a roughly 12 × 12 inch rectangle.
Drill holes at the corners, then cut out the rectangle with a jigsaw. Save the piece you cut out—it becomes the door.
Attach it with two hinges and install a sturdy latch on the opposite side. Use bolts and large washers rather than relying solely on screws; the plastic can flex when the barrel is full.
This is optional but worthwhile. Attach two or three strips of PVC, plastic, or galvanized metal lengthwise inside the barrel.
They catch the compost as the barrel rotates and help lift and redistribute it rather than simply having everything slide around the bottom. DIY tumbler designs commonly use internal PVC or metal fins for this purpose.
Make two sturdy A-shaped supports from 2×4s and connect them with crosspieces.
Position the supports so the barrel sits comfortably above the ground with its axle resting in the two supports. The stand needs to be quite sturdy—the compost can become surprisingly heavy when wet.
You can make the axle removable, which makes it easier to take the finished compost out.
Slide the axle through:
stand → barrel → stand
The barrel should rotate freely. Give it several test rotations before adding compost.
If it binds, enlarge or realign the axle holes slightly rather than forcing it.
The basic recipe is:
“Browns” + “greens” + moisture + oxygen
Oxygen is essential to aerobic composting, while excessive moisture can exclude air and cause odors.
A useful trick is to keep a bag or pile of dry shredded leaves beside the tumbler. Whenever you add a bucket of wet kitchen scraps, add some dry leaves as well. This is particularly helpful because kitchen scraps contain a lot of water.
Once you've added a reasonable amount of material, rotate the barrel several times every few days.
Don't constantly add fresh scraps to a batch you're trying to finish. Tumblers work particularly well when you fill a batch, stop adding material, and turn it periodically until it finishes. If you continually add new scraps, you'll have compost at different stages of decomposition.
If you want the minimum-build approach, I'd make:
┌───────────────┐
┌──┤ BARREL ├──┐
│ │ compost │ │
│ │ │ │
│ └───────────────┘ │
│ AXLE │
╱─┴─╲ ╱─┴─╲
╱ ╲ ╱ ╲
╱ ╲_____________╱ ╲
wooden A-frame supports
Barrel → axle → two wooden A-frames is really all you need. Ventilation holes, a secure access door, and internal fins make it substantially better.
One important safety point: don't use an unknown recycled barrel. A food-grade barrel that previously held something benign is much preferable to a mystery industrial drum.
For reference, Wisconsin Extension's barrel-composter instructions and Backwoods Home's DIY tumbler design have useful construction details and diagrams.
Building a backyard compost tumbler using a 55-gallon food-grade plastic drum is an affordable, rewarding project that mixes your kitchen scraps and yard waste with minimal heavy lifting.
Materials & Tools Needed
Step 1: Prepare the Barrel and Cut the Hatch
Step 2: Drill Ventilation and Drainage Holes
Step 3: Build the Stand
Step 4: Assemble and Mount the Barrel
“Instead of one large compost tumbler, I've decided to make several smaller compost tumblers. Rather than waiting until a large compost bin has usable compost, I can have smaller bins maturing at different times, ensuring an all year round supply.”
“Like a stationary compost bin, tumblers do best when located in dappled sun or shade. That's because the sun can distort plastic components. Over time, this may prevent them from fitting together properly.”
Watch this detailed video to see how a 55-gallon drum is mounted and turned on a wooden frame:
5m
DIY composter tumbler - 55 gallon barrel project 391K views · 12 years ago
YouTube · homesteadonomics
Would you like tips on what ratios of green and brown materials to feed your new tumbler, or help adjusting the axle design for your specific barrel type?
Building a DIY compost tumbler is a fantastic weekend project that speeds up decomposition by making it easy to mix your scraps.
Materials & Tools Needed
Step-by-Step Instructions
Would you like recommendations on how to balance your green-to-brown ratio once you start tumbling, or do you need a specific lumber cut list for the wooden stand?
Absolutely. The simplest version is basically a plastic barrel on a wooden frame with two wheels/rollers underneath, so you can rotate the barrel by hand. A tumbler makes aerating the compost much easier than turning a pile with a fork.
What you'll need
A 55-gallon barrel is a common DIY choice, but an old sturdy trash can works too. Make sure a reused container previously held food-safe/non-toxic material; don't use a drum that contained pesticides, solvents, petroleum products, etc. DIY designs commonly use drilled ventilation holes and a secure access hatch.
Drill ventilation holes around the barrel—roughly 1/2-inch holes spaced about 8–12 inches apart is a reasonable starting point. The holes provide the oxygen your composting microbes need.
Then make an access door, approximately 10 × 14 inches, on the side. You can cut three sides, leave the fourth as a hinge, and attach a couple of small hinges and a latch.
Tip: Smooth or sand any sharp plastic edges.
Make a rectangular frame from 2×4s that's slightly wider and longer than your barrel.
For example:
BARREL
______________
/ \
/ \
| |
\ /
\______________/
O O
| |
===|==========|=== 2x4 frame
| |
| |
Put two rollers/casters on each side of the frame so the barrel rests on them. A published DIY design uses four caster wheels underneath the container; another uses a simple 2×4 frame with casters attached to the top.
The important thing is that the barrel can rotate freely through a full 360° without hitting the frame.
This is the part I'd pay particular attention to. Add a small stop/block on either side of the barrel, or arrange the rollers so their edges naturally keep the barrel centered.
Before adding compost, spin the empty barrel several times. It should rotate smoothly without rubbing the frame.
Aim for a mixture of:
Don't pack it completely full. Leave some empty space so the material can tumble.
The contents should feel roughly like a wrung-out sponge—moist, but not dripping.
Close and latch the door, then rotate the barrel several times every few days.
If it becomes too wet or smelly, add dry leaves, shredded cardboard, or other carbon material and tumble it.
If it's too dry, add a little water and tumble it.
If decomposition seems sluggish, turning it adds oxygen and redistributes the material.
If you don't want to build a complicated stand, I'd make a low roller-style tumbler:
It's considerably simpler than building a barrel around a central axle, and you can make the whole thing from ordinary lumber and hardware. The general roller/caster approach has been demonstrated in DIY plans using two 2×4s, four caster wheels, and a plastic container.
Adafruit's detailed DIY tumbler guide is a useful reference if you want measurements and assembly details.
One improvement I'd recommend: build two smaller chambers rather than one huge one if you have room. You can let one batch finish while continuously adding fresh scraps to the other.
Building a simple DIY compost tumbler is a great way to speed up decomposition with minimal effort. A popular method uses a 30- to 55-gallon plastic storage drum or a clean trash can.
Materials and Tools Needed
Step-by-Step Construction
Tips for Success
Would you like some recommendations on how to build the wooden frame stand instead of using sawhorses, or tips on troubleshooting common compost tumbler issues?
A simple DIY compost tumbler can be made from a plastic food-grade barrel or heavy-duty plastic trash can, an axle, and a basic wooden frame. The key is allowing enough air and moisture while making the barrel easy to rotate. Composting needs carbon (“browns”), nitrogen (“greens”), water, and oxygen.
1. Prepare the barrel
Clean it thoroughly and make absolutely sure it previously contained food-safe material—not chemicals, pesticides, solvents, or petroleum products.
Drill ventilation holes around the barrel. Put some toward the ends and along the sides, but don't make so many that the barrel loses structural strength.
2. Install the axle
Mark the center of each circular end of the barrel. Drill matching holes and run your metal pipe straight through.
Put large washers on the outside if necessary to distribute the load.
The axle should be very solid because a full tumbler can become surprisingly heavy.
3. Add mixing fins
Inside the barrel, attach 2–3 pieces of untreated lumber running lengthwise along the inside wall. When you rotate the barrel, these act like paddles and lift the compost before dropping it.
This is one of the easiest ways to make a homemade tumbler actually mix effectively.
4. Build the stand
Make two sturdy A-shaped supports, one for each end of the barrel. Mount the axle on brackets or bearings at the top.
Leave enough clearance underneath to put a wheelbarrow or garden cart beneath the barrel.
A simple design is essentially:
axle
│
┌─┴─┐
/ \
/ barrel\
/ \
/ \
───────────────
ground
Make the frame substantially stronger than you think you need. The barrel is relatively light empty but becomes much heavier when filled with wet compost.
5. Make an access door
If you're using a closed barrel, cut a rectangular opening large enough to comfortably load and unload material. Hinge the cut-out piece and install a strong latch.
Alternatively, use a barrel with a removable screw-top lid.
Start with a mixture of roughly 2–3 parts browns to 1 part greens by volume. Browns include dry leaves, shredded cardboard, and small twigs; greens include vegetable scraps, grass clippings, and coffee grounds.
Add water until the mixture feels approximately like a wrung-out sponge. Too much water can reduce oxygen and cause odors; too little slows decomposition.
Then:
Turning supplies oxygen and mixes the material, both of which help decomposition.
For a first project, I'd choose a 40–55 gallon food-grade plastic barrel + 1-inch steel axle + 2×4 A-frame + three internal baffles. It's inexpensive, relatively easy to build, and large enough for normal household/garden quantities without becoming ridiculously heavy.
One important caveat: don't put meat, bones, dairy, fats/oils, pet waste, or diseased plants into a typical backyard tumbler; these can create pest or pathogen problems, and backyard systems generally don't reliably reach the temperatures needed to handle them safely.
If you want, I can also give you a cut list and exact dimensions for a $50–$75 version, including a simple diagram of the wooden stand.
Building a DIY compost tumbler using a 55-gallon plastic drum is a satisfying weekend project that costs a fraction of store-bought models . It keeps pests out , accelerates decomposition through easy mixing , and lets you roll a wheelbarrow right underneath for unloading.
Materials and Tools
Step-by-Step Construction Guide
Community Experiences
I used a 55-gallon food grade drum and built a simple wood frame with caster wheels. It spins so easily even when half full, and I don't have to strain my back turning a heavy crank.
Making the hatch door was the trickiest part. Make sure you use heavy duty toggle clamps so it doesn't pop open when it rotates to the bottom position with wet material inside.
Would you like recommendations on whether to use a central axle design or a caster-wheel cradle design , or do you need help figuring out the ideal green-to-brown ratio to put inside once it's built?
Absolutely. The simplest DIY tumbler is a food-safe plastic barrel mounted on a wooden frame with a metal axle. It’s inexpensive, relatively easy to build, and easy to turn. A typical design uses a 55-gallon barrel, an axle through the center, and ventilation holes around the barrel.
Barrel
Frame
Clean the barrel thoroughly.
Use only a barrel that previously held food or another material known to be safe. Avoid unknown chemical containers.
Mark the axle location.
Find the exact center of the barrel's two opposite sides. Accuracy matters—the barrel will rotate much more easily if the axle is centered.
Drill the axle holes.
Make holes just large enough for your metal pipe, then push the pipe completely through the barrel.
Add ventilation holes.
Drill roughly ⅜–½-inch holes around the sides, top, and bottom. A practical starting point is 30–50 evenly distributed holes; the holes provide oxygen and allow excess moisture to escape.
Make an access hatch.
Cut a roughly 10×14-inch opening in the side of the barrel. Attach the cut section with hinges and secure it with a sturdy latch. Use washers on the inside of the barrel so the fasteners don't pull through the plastic.
Build two A-frame supports.
Make two sturdy wooden supports that hold the axle roughly 2–3 feet above the ground. Connect them with cross-bracing so they can't spread apart.
Install the barrel.
Slide the axle through the barrel and the two wooden supports. Add spacers/washers between the barrel and frame so the plastic doesn't rub against the wood.
Test the rotation.
Spin the empty barrel. It should rotate smoothly without wobbling. If it's difficult to turn, check that the axle is straight and centered.
Start with a mixture of “browns” such as dry leaves, shredded cardboard, and paper, plus “greens” such as vegetable scraps and fresh grass. A useful starting point is roughly 3–4 parts carbon-rich browns to 1 part greens.
Keep the contents damp like a wrung-out sponge, not soggy. Close the hatch and give the tumbler several rotations every few days. Turning distributes oxygen and moisture throughout the material.
One useful improvement: attach a couple of short pieces of PVC or wood inside the barrel running lengthwise. They'll act as internal fins, lifting and mixing the compost as you rotate it instead of letting everything simply slide around the bottom.
For a first build, I'd choose a 35–55 gallon food-grade plastic barrel + 1-inch galvanized pipe axle + 2×4 wooden A-frame. It's much simpler than building a complicated geared tumbler, while still giving you the main benefit: effortless mixing.
Building a backyard compost tumbler using a 55-gallon plastic drum (or a food-grade water barrel) is a classic DIY project . It keeps pests out, accelerates decomposition through heat retention, and makes turning the pile effortless.
Watch this detailed guide on how to build a rotating composter out of a plastic barrel:
7:15
How to make a compost tumbler for easy composting 129K views · 2 years ago
YouTube · Gardening Australia
Materials and Tools Needed
Step-by-Step Instructions
Community Experiences
I found using a 55-gallon drum with a screw lid saved me from dealing with a janky homemade door that might leak compost juice or jam up.
Painting it black made a huge difference in how fast the summer heat cooked down the melon rinds and yard waste. Just place it somewhere with decent light!
Would you like tips on the ideal green-to-brown ratios to prevent odors, or do you need help designing a specific wood frame structure for your stand?
A simple compost tumbler can be built in a weekend using a food-grade plastic drum, a wooden stand, and a few basic tools. This design is inexpensive, easy to turn, and speeds up composting by improving aeration.
Prepare the drum
Build the frame
Add internal mixing fins (optional but helpful)
Load the compost Aim for roughly:
Keep the pile about as moist as a wrung-out sponge.
Turn regularly Rotate the tumbler every 2–3 days. A well-balanced batch can produce finished compost in about 6–8 weeks during warm weather.
If you're looking for the simplest possible build, a rolling barrel on four caster wheels is usually easier than installing a center axle, while still providing excellent mixing.