Are you tired of your old, boring kitchen sink? Are you ready to upgrade to a sink that will make all your friends jealous? Well, look no further than a DIY single bowl concrete kitchen sink!

That’s right, concrete isn’t just for sidewalks and driveways anymore. With a little bit of know-how and some elbow grease, you can make a sleek and modern sink that will be the centerpiece of your kitchen. Plus, it’s durable and easy to clean, making it the perfect choice for any home chef.

But before you get started, there are a few things you need to know. In this guide, we’ll walk you through the process of making a single bowl concrete kitchen sink, from the materials you’ll need to the finishing touches. But first, a few disclaimers:

  • This is not a quick or easy project. Plan to spend several days on this, especially if you’re new to DIY.
  • You’ll need some specialized tools and materials, including concrete mix, rebar or wire mesh, and a circular saw or jigsaw.
  • Concrete sinks aren’t for everyone. Some people love them, while others find them too heavy or too difficult to maintain.

Are you ready to take on this challenge? Let’s get started!

Materials and Tools Required

Before we get started on making our very own concrete kitchen sink, let’s gather all the materials and tools we need. Don’t worry, you won’t need a rocket scientist degree or any fancy machinery for this one. Just some simple stuff that you can find in your nearest hardware store.

Materials Required

  • Concrete Mix: The star of the show. You can choose from different types of concrete mix depending on your preference and the sink’s size.
  • Water: Just regular old water. No need to add any secret ingredients.
  • Mold Release Agent: This will prevent the concrete from sticking to the mold. Trust us; you don’t want to try prying it off with a crowbar.
  • Wire Mesh or Rebar: To reinforce your sink and make it sturdy.
  • Silicone Caulk: To seal any gaps or cracks between the sink and the countertop.
  • Sandpaper or Polishing Pads: To achieve that smooth finish on your sink.

Tools Required

  • Circular Saw or Jigsaw: To cut out the sink’s shape from the countertop.
  • Drill with Mixer Attachment: To mix the concrete and water thoroughly.
  • Rubber Gloves and Eye Protection: Safety first, folks.
  • Trowel and Float: To smooth and level the concrete surface.
  • Hammer and Nails or Screwdriver and Screws: To secure the mold in place.
  • Sander or Polisher: To achieve that polished finish on your sink.

That’s it! Gather all these materials and tools, and we’re ready to make some magic happen. Don’t worry; we’ll guide you through every step of the way. But before that, let’s take a look at some helpful links that will come in handy throughout this project.

Measure and Mix Concrete

Alright, now we’re getting to the fun part! The first step to making your own concrete kitchen sink is measuring and mixing the concrete. Here’s what you need to do:

Step 1: Measure your concrete mix

You’ll need to figure out how much concrete mix you need based on the size and depth of your desired sink. Make sure to get enough, because running out mid-pour is not a good time. You can use a calculator to figure out the amount of concrete you need, or do some quick math in your head. Don’t worry, I won’t judge if you need a calculator.

Step 2: Add water

Once you’ve measured out your concrete mix, add water to it in a bucket or mixing tray. Make sure to follow the instructions on the bag for the correct water-to-concrete ratio. You want your mix to be wet enough to pour easily, but not so wet that it’s runny.

Step 3: Mix it up

Now it’s time to get your hands dirty! Use a trowel or mixing paddle to mix the concrete and water together until it’s a uniform consistency. This is a great arm workout, by the way.

Step 4: Check the consistency

To make sure your concrete is the right consistency, grab a handful and give it a squeeze. It should hold its shape without crumbling apart, but it shouldn’t be so wet that water drips out of it.

Step 5: Let it rest

After you’ve mixed your concrete, let it rest for a few minutes before using it. This will give the water time to fully activate the cement and make the mix stronger.

Step 6: Mix it again

Before you start pouring your concrete into the mold, give it a quick mix again. It may have settled or separated a bit while resting, so you want to make sure it’s still a uniform consistency.

That’s it! Now you’re ready to start pouring your concrete into the mold and creating your very own custom kitchen sink.

Create the Mold

Alright, now that we’ve got our concrete mixed up and ready to go, it’s time to create a mold for our sink. This part can be a little tricky, but don’t worry, I’m here to guide you through it.

Step 1: Decide on the size and shape

The first thing you need to do is decide on the size and shape of your sink. You can use an existing sink as a reference, or get creative and design your own unique shape. Just make sure it will fit in your kitchen and that you can actually use it as a sink.

Step 2: Build the mold

Now it’s time to build your mold. You can use a variety of materials for this, including melamine boards, foam insulation, or even cardboard. Just make sure it’s sturdy enough to hold the weight of the concrete.

  • Cut the boards to the size and shape of your sink.
  • Use screws, nails, or glue to attach the boards together, making sure the edges are flush.
  • For an added touch, you can use a router to round the edges of the mold.

Step 3: Apply mold release agent

Before you start pouring your concrete into the mold, you need to apply a mold release agent. This will prevent the concrete from sticking to the mold and make it easier to remove once it’s set.

  • You can use a variety of products for this, including cooking spray, petroleum jelly, or special mold release sprays.
  • Apply the release agent generously to the inside of the mold, making sure to cover every surface.
  • Let the release agent dry for a few minutes before pouring in the concrete.

Step 4: Add reinforcement

To ensure your sink is strong enough to withstand regular use, you’ll need to add reinforcement to the mold before pouring in the concrete.

  • You can use wire mesh, rebar, or even fiberglass to reinforce your sink.
  • Cut the reinforcement to size and place it in the bottom of the mold.
  • Make sure the reinforcement is centered and not touching the sides of the mold.

That’s it! You’ve now created your very own mold for your concrete sink. It may take a bit of time and effort, but trust me, it will be worth it in the end.

Safety Precautions

Before you start making your own concrete sink, it’s essential to take some safety precautions. Here are some of the things you should keep in mind:

Protect Yourself

  • Always wear protective clothing, including gloves and safety glasses, when working with concrete mix.
  • Wear a dust mask to avoid inhaling cement dust, which can irritate your nose and throat.


  • Work in a well-ventilated area to minimize exposure to dust and fumes. Concrete mix can release harmful chemicals and dust, so it’s important to work in an area with good air circulation.
  • If you’re working indoors, open windows and doors or use a fan to improve air circulation.

Heavy Lifting

  • Concrete can be heavy, so be careful when lifting and moving the molds, especially if you’re working alone.
  • Use a dolly or a hand truck to move heavy items.


  • Be sure to use mold release agents and other chemicals according to the manufacturer’s instructions to avoid accidents.
  • Store chemicals in a safe place, away from children and pets.


  • Concrete mix can be difficult to remove once it dries, so it’s important to clean up spills and drips as soon as possible.
  • Dispose of concrete mix and other waste properly, following local regulations.

Electric Tools

  • If you are using electric tools, make sure they are in good working condition, and always use them according to the manufacturer’s instructions.
  • Keep cords away from wet surfaces to avoid electrical hazards.

By following these safety precautions, you can ensure that your concrete sink project goes smoothly and without any accidents. Remember to take your time, follow the instructions carefully, and have fun creating your very own custom kitchen sink!


And that’s it, folks! You’ve made it to the end of our guide on how to make a concrete kitchen sink. Congratulations, you can now brag to all your friends about your new-found concrete mixing skills.

To summarize, making a concrete sink requires a bit of time, patience, and a lot of elbow grease. But with the right tools, materials, and techniques, it’s a manageable and rewarding DIY project that will last for years to come.

Here are some of the key takeaways from this guide:

  • Concrete sinks are a unique and stylish addition to any kitchen that can also be highly functional.
  • The amount of concrete mix required for your sink will depend on the desired size and depth, so make sure to measure carefully.
  • Creating a mold for your sink is an important step that requires precision and attention to detail.
  • Reinforcing your sink with wire mesh or rebar will ensure it can withstand regular use.
  • Pouring the concrete is where the real magic happens, but it’s important to take your time and ensure everything is level and smooth.
  • Achieving a smooth finish on the surface of the sink takes some work, but the end result is worth it.

We hope you found this guide helpful and that you’re now ready to embark on your own concrete sink making adventure. And remember, if you need more inspiration or guidance, there are plenty of resources out there to help you along the way. Check out some of our other DIY kitchen projects such as preventing water splashing in kitchen sink, upgrading your kitchen with a modern concrete sink with drainboard and cutting board, and making your own kitchen sink splash guard.

And if you’re still not convinced that concrete sinks are the way to go, make sure to check out our article on the durability of concrete sinks and the pros and cons of concrete kitchen sinks.

Happy DIY-ing!

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