How To Make A Concrete Farmhouse Sink? (2021’s Latest Guideline)

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A concrete farmhouse sink in the kitchen or bathroom interior will be an elegant part of your kitchen. It has all of the essential performance qualities, durability, and aesthetic diversity. 

But there is more to add: The best things about a concrete farmhouse sink are that you can make one with your own hands to lower the expense, and the material’s flexibility allows you to create unique designs.

Good news for you, learning how to make a concrete farmhouse sink only takes a few minutes of reading our article. Let’s get started!

Things You Need To Know Before Making A Concrete Farmhouse Sink

Concrete farmhouse sinks are wonderful since they can be built to any length, width, and depth. In addition, the design of kitchen-bath concrete sinks varies in different styles.

The texture of the surface might differ from smooth and polished to matte or rough. The color, on the other hand, is no longer a universal gray. Today’s concrete bathroom sink may be painted in many colors. However, many people prefer a neutral color that will last.

An industrial concrete sink and a DIY concrete sink both need specialized tools such as a vibrating table and a concrete mixer. If you don’t have one, you may try an alternative, such as a mixer attachment for a rotary hammer.

Here is the list of everything you need for the project:

  • Quikrete
  • Styrofoam Sheets
  • Silicone sealant
  • 3/4″ plywood
  • Screws
  • Kitchen Drain assembly
  • White Waterproof concrete sealer
  • Angle grinder
  • Set of various polishing wheels
  • Work bucket
  • Concrete drill mixer
  • Paintbrush
  • Circular saw
  • Drill
  • Utility knife
  • Caulk gun
  • WD-40

Related Posts:

How to Install a Farmhouse Sink in Existing Cabinets

How to Unclog a Double Kitchen Sink with Garbage Disposal

Seven Steps To Make A Concrete Farmhouse Sink

1. Form the mold

What you need are five chopped pieces to form the mold. One for the “bottom,” two for the width sides, and two for the long sides.


The dimensions for these are:

  • 3′ x 1.5′ for the bottom piece
  • 3′ x 6″ for 2 width side pieces
  • 1.5′ x 6″ for 2 length side pieces

Next, you need to screw the four sides and bottom together to form a square bucket. Use two screws on each side, one on top and one on the bottom. Finally, put a bead of silicone in each corner and smooth it out with your finger.

2. Add the Negative

Cut one piece of foam to ‘1’,2″ x 2′,8″ to make the recess. Next, cut six foams into 1′,2″ x 1′,3″ squares. After they’ve been cut, glue three of them in an equal stack on one side of the main piece, lining the outer edges as smooth as possible.

After that, repeat the process with the remaining three squares on the other side of the huge foam piece and let everything dry.

Finally, cut six 3.5″ diameter foam circles. Take three circles and glue one to another in the same way as earlier, sand them as smooth as possible. These circles will save the spots for your drainage holes later. 

Repeat with the remaining three circles to create two stacks. When they’re smooth, measure the exact center of the two square stacks, attach the cylinders in the precise center so that they stick up out of the mold, and let everything dry.

3. Pour the concrete

This step is quite simple. All you have to do is to follow the directions on the package of concrete. One little piece of advice is to mix tiny amounts of concrete and water at a time.

Continue mixing batches and pouring until your mold is filled but not overflowing. When your mold is filled, take out a hammer and begin tapping the sides. This causes all of the trapped bubbles in the mixture to float to the surface.


This will take some time but continue until the bubbles stop floating to the surface. Then, you’ll smooth the top as the final step in this process.

4. Remove the sink from the mold

After the sink has dried, it is time to take it out from the mold. Simply unscrew the sides and take them off. Remove the sides and flip it off the bottom baseboard, showing all the foam you installed previously. Use a utility knife to wipe off all of the foam.

You may notice that you have some holes in your sink from air bubbles that did not float up, which you will need to fix. To patch these holes, mix a tiny amount of concrete and rub it into the holes before allowing it to cure.

5. Smooth the sink

Now that your sink has dried and any significant holes have been repaired, it is time to smooth it out and polish it. You might want to purchase a set of polishing wheels for this task. 

It is ideal for giving it a beautiful sheen and removing any flaws, so grabbing a pack and going to town smoothing out all the sides. Then, continue to get finer and finer until you get a good smooth finish.


6. Paint the sink

Painting the sink is where everything comes together. It’s now grey, but if you want classic white, utilize white concrete enamel waterproofing paint for this job.

Your sink may still have bubbles where the concrete did not fill properly. So, to solve this problem, apply it in many layers. Don’t be afraid to pile it on.

7. Install the drains

Finally, just put the drains you choose into our drain holes. Follow the instructions on the package until you are finished.

See how to install drain pipes on a kitchen sink:

Final Thoughts

These are our final words on “how to make a concrete farmhouse sink.” All in all, learning to do something new for the first time might seem a bit troublesome, but it doesn’t mean it’s impossible, including making a concrete farmhouse sink.

We believe that with our detailed guidelines, you have understood every step it takes for this project. If you don’t quite make it at the first attempt, try to figure out what you have done wrong and improve next time.

Follow our article every day for more upcoming articles on DIY projects.