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BLACK+DECKER 40-Gallon Dual Chamber Compost Tumbler Outdoor (BDSTGA9701)

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$129.99

$ 63 .99 $63.99

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About this item

  • EASY TO USE: Large, built-in handle with gear system requires minimal effort to turn the barrel
  • ACCELERATED PROCESS: Internal mixing bars aerate material while spinning to help accelerate decomposition
  • ALWAYS HAVE COMPOST: With two chambers, you can add ingredients to one side while letting the other side decompose
  • FAST COMPOSTING: Aerating vents help promote fast composting with air flow
  • SIMPLE TO LOAD: Two sliding doors make it easy to load and unload


Turn food scraps and yard waste into nutrient-rich compost soil with the BLACK+DECKER Tumbler Composter. Tumble the compost barrel with minimal effort. The built-in, large handle with gear system makes it easy and efficient. Don't get caught without compost. The dual chamber allows you to add compost ingredients to one side while letting the other side cure. Our Tumbler Composter accelerates the decomposition process by aerating the soil with the built-in mixing bars, giving you finished compost soil in weeks in ideal conditions.


Troy Rainey
Reviewed in the United States on January 21, 2025
So a couple of first impressions. All parts were wrapped in tissue and individual boxed. Sturdy boxes, taped closed. Good start when things are not broken from the start. All hardware bags were clearly labeled. Came with open end wrench and allen wrench. You will need your own Phillips head screwdriver for attaching the crank. Assembly instructions were very clear, written well and easy to follow. Frame is really solid. Took about an hour to assemble, but I wasn’t rushing. Some parts of the assembly would be easier with 2 people, but a was able to complete with just myself. So far solid unit. Barrel has divider down the middle. Whole unit is not large. I’ll have to see if that becomes an issue later if I run out of room inside. But so far its working pretty nicely.
Paul Alepins
Reviewed in Canada on May 26, 2024
J'ai mis 4 étoiles à Robustesse parce qu'avec la chaleur le plastique se déforme légèrement; ça fait moins beau mais ça fait la job.
Ken Seiders Jr
Reviewed in the United States on October 29, 2024
This comes in a flat box, so assembly starts with flat panels. It comes with a combination wrench and hex wrench that are way better than the average tools that usually come with assemble yourself furniture. It's a Black+Decker brand, so it makes sense that it would come with decent tools.Given the finished size of the unit, I would recommend a second set of hands while assembling. With the help, we had this fully assembled in about 20 minutes. The assembly instructions are really clear and everything is easily identified and labeled as needed.The overall quality seems pretty good. The drum is all plastic panels with reinforcing ribs molded in. The stand is painted steel. I'll have to see how well this stands the test of time and the outdoor elements.Design-wise, the drum sits a little bit higher off the ground than some other units. It's almost high enough to clear my standard wheelbarrow, but it will work better with a lower height garden cart that I ordered separately. The legs are in a cantilever arrangement so there's no front crossbar to contend with, especially when setting a cart underneath for unloading.There are adjustable vents on one panel to help regulate air flow, along with smaller slits in other areas. The 2 sliding doors easy slide off so they can be out of the way for loading and unloading. I like that this is designed with a geared crank so it's easy to turn over versus a direct crank. And there is a simple latch lock to keep the drum in a fixed position when needed.I already loaded it up with garden waste, but since it's getting colder here I don't expect compost to be ready until spring.
Sic Semper Tyrannis
Reviewed in the United States on April 7, 2023
I wasn't crazy about buying a product labeled Black & Decker since they've kind of been a joke brand for the last 40 years. But I'm genuinely impressed with this composter. I've had other plastic yard accessories in the past and the fact that I don't have them now was a big warning sign.However I have to give them full credit for the sturdiness of the construction and the ease of assembly. The plastic sections are all really close to piston-fit with each other. The only material that will be moving in between chambers is going to be liquid.The barrel sections are held together with threaded rod that goes through the entire assembly, similar to how induction motors are held together, which is very secure.I've written documentation professionally and this set of instructions is a case study in what companies should be shooting for. At one point I wasn't matching up the A and B ends of the barrel sections but that was my fault for skimming, and the giant A and B stamped on the pieces prominently told me "hey dummy, you have the ends mismatched", so the assembly is actually also partially stamped into the actual product.My only real concern for longevity is the metal sections - they are coated, heavily, but I don't know what the coating is or how long it will withstand the elements (and compost goop).Turning the barrel is easy and the compost appears to mix well. Kitchen scraps tumble perfectly but a small pile of chickweed that I got compacted & tangled isn't un-tangling after one day, and I'm not holding that against it.I didn't want the gear reduction, because I saw it as an unnecessary complication, but it's already getting heavy and it's kind of nice that I can tell the 5-year-old he can turn the crank whenever he wants and that it'll actually move.The unit gets marked down one star for two issues:One, the barrel rotation lock is janky. It's not something that stays put when you want it to so if you want to lock the rotation you have to hold the lock down - which is fiddly. I will probably rig something better.The second and more important issue is the door size. I think it's too small. I just dumped my first mixing bowl full of kitchen scraps in it, and some of it didn't make it in. For something children are probably going to be doing, it should be a bit more fool proof.All in all I'm happy and looking forward to seeing how long it takes to make finished product.
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