Effective DIY Composter – 2 Tiered Drum

Last Updated on July 8, 2023 by teamobn

Double-Decker Drum Composter

After I dug the holes and set the frame into place, I filled the holes with fast-setting cement. Each hole took 6 bags (12 total – 60 lbs. each).

Once the barrels are made and full, they could get very heavy with the compost so the frame and concrete anchors of the composter must be strong. I feel as though the stakes and concrete will prevent the frame from leaning or moving much.

Double-Decker Drum Composter Galvanized Poles

I used galvanized poles left over from another job and cut two 5 foot lengths. These go through the holes in the posts and are what holds the barrel.

Be careful when selecting poles, since they will need to be strong to support the weight of the barrels when they’re full.

Double-Decker Drum Composter

Once the frame was ready, I began working on the barrels which are made from 55 gallon drums.

I decided to use blue since they get warm and will heat the compost inside. The barrels need to be a dark color since light colors will reflect the sun and heat is important when composting.

Using a 2 inch hole saw, I cut holes exactly in the center of the bottom and top of the barrels. This is what the pole will go through.

Double-Decker Drum Composter

Then, using a rotary saw, I cut a rectangular door into each barrel. Take care that the door is big enough to allow comfortable access to the inside of the barrel.

After that, I used a drill to drill several hundred holes all over the barrels to allow for air to circulate inside the barrel. Air is also important when composting.

Double-Decker Drum Composter

To make the door, I had to get several pieces of hardware.

I needed 2 flat braces, 2 handles, 4 hinges, 8 barrel locks and enough screws/nuts/washers to hold everything on.

Double-Decker Drum Composter

Each door got 4 barrel locks since they work together to hold the door closed while spinning and they help to keep the shape of the door, since they tend to lose their shape and flatten out.

Each barrel also got a flat brace installed inside. It sticks up slightly to prevent the door from falling inward.

Double-Decker Drum Composter

Now that the barrels were finished, I put the pole through the barrel and put them on the frame.

I checked everything and made sure that the barrels spun on the poles properly. At this point, the project is complete.

Double-Decker Drum Composter

Making compost in the barrels is easy. Simply throw all kitchen scraps, lawn clippings, leaves and other organic matter into it and it will decompose naturally and make healthy soil.

Once one barrel is full, the next one can be started on. Rotate the barrels every so often to mix and aerate the compost.

***Take care not to put things like meat and animal feces into the the compost – only vegetables and plants. However, one exception to this would be eggshells. If unsure, do an internet search on composting to find lists of acceptable materials.***

Double-Decker Drum Composter - Tip

This step is purely optional, but I don’t want to have to make a trip out to the composter every time I make something in the kitchen, so what I do is keep a little plastic bin in my freezer. I put everything in there and when it gets full, I dump it into the composter. It melts and decays right along with everything else and saves me a few trips.

Compost is not only good for your garden but good for the environment too. Reduce your carbon footprint by composting what you can, and recycling, reusing or repurposing the rest.

Could you use one in your garden?

Thanks to iPodGuy for this great tutorial!



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