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Home ยป DIY Projects ยป Custom built in bathroom vanity with microcement

Custom built in bathroom vanity with microcement

March 22, 2023 | By Jenna Sue DIY Projects, Hacienda Hideaway

If you’re looking for a unique, minimalist and low cost alternative to a typical bathroom vanity, I’ve got a tutorial for you! Keep reading to find out how to DIY your own custom ‘Modern Mediterranean’ style vanity for a fraction of the cost:

diy custom built in microcement vanity tutorialPin

A vanity is typically one of the most expensive purchases in a bathroom renovation, and it can be a challenge to find the exact style and size you want. For our Minimalist Mediterranean bathroom makeover, I wanted something differentโ€”simple, high-end and budget-friendly.

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Left: Pearson Design Group / Right: Becki Owens

I found a couple inspiration photos online, and came up with a design and build plan with Lucas. Here’s what you’ll need for this project:

Jump to:

  • Microcement vanity materials
  • Step 1: Build the frame
  • Step 2: Add cement board, tape and waterproof
  • Step 3: Install countertop
  • Step 4: Apply microcement
  • Total cost

Microcement vanity materials

  • 2x4x8’s
  • 2x8x8′ (optional)
  • 1/2″ cement board
  • Joint tape
  • Waterproofing membrane
  • Microcement
  • Concrete sealer

Step 1: Build the frame

First, you’ll want to measure and decide on the size of your vanity. We wanted to fit two sinks into our design, so we made it as wide as possibleโ€”55″ total. Before starting, Lucas reinforced the right wall with blocking to support the weight of the countertop.

diy custom built in vanity framingPin

The overall design is also completely customizable. Adding a partial wall on the left side is a great way to create privacy and make the vanity feel more custom and built-in.

diy custom built in vanity framingPin

The frame was a simple 2×4′ construction, with a 2×8′ along the front and left side (you could also just stack multiple 2×4’s to get your desired height). The boards were secured to the studs on the back and right wall, and the left wall secured into the floor for stability.

diy custom built in vanity framingPin

We used scrap wood leftover from previous projects, and ended up using — and — boards in total.

diy custom built in vanity framingPin

To create the rounded edge of the wall, Lucas added a support block in the corner and traced a round object along our desired curve. The block was attached using wood glue and clamps (no screws) and the screws removed from the two corner pieces before moving onto the next step. Lots of wood glue is key here for a solid bond!

diy custom built in vanity framingPin

A hand planer is a quick and easy way to carve the wood downโ€”it’s also an inexpensive tool that every woodworker should have in their arsenal! After the rough cuts are made, an orbital sander will smooth it all out nicely.

diy custom built in vanity framingPin

After the rough cuts are made, an orbital sander will smooth it all out nicely.

diy custom built in vanity framingPin

Step 2: Add cement board, tape and waterproof

With a basic skeleton built, it was onto phase two of the framing. For the sides of the wall, we used 1/2″ cement board.

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Each section was cut down to fit the wall (including the curve) using an angle grinder. Cutting cement board is a very dusty job, so make sure to wear safety glasses and a mask!

diy custom built in vanity framingPin

We decided to add a shelf near the bottom, constructed with 2×4’s and pocket holes. Lucas also added an additional 2×4′ along the front to make the apron taller.

diy custom built in vanity framingPin

The shelf was topped with 1/2″ cement board, along with the remaining open areas of the wall.

diy custom built in vanity framingPin

And the construction of the frame was complete!

diy custom built in vanity Pin

Cement board tape was applied along all of the seams, including the 2×8 and 2×4′ seam before coating everything in waterproofing membrane. We used our leftover Elastoshield for this, but you could also use the more popular version RedGard.

diy custom vanity waterproofingPin

A waterproofing membrane is a rubbery coating applied with a roller or brush, that dries to a hard finish. It’s required over wood and cement board before applying microcement, and protects the material from moisture.

Step 3: Install countertop

For the countertop, I chose Hanstone matte river washed gray quartz in Storm, and found a local fabricator to create integrated sinks. Labor cost a pretty penny (over $2k) so you certainly don’t have to go this routeโ€”I just had my heart set on it!

custom integrated quartz sink countertopPin

If you’re more budget-minded, you should be able to find an inexpensive slab or remnant, and have two undermount sinks installed for well under $1k total.

diy custom vanity with integrated quartz sinksPin

We opted to have the counter installed before microcement, knowing that it wouldn’t be a perfect fit (it never is!) and we could fill in any uneven gaps with the microcement.

Step 4: Apply microcement

Here’s where the magic happens! If you’re not familiar with microcement, make sure to check out my DIY Microcement Bathroom post for everything you need to know. We were sold after our first experience with it, and decided it would be the perfect cost-effective material to use for this built-in minimalist vanity.

diy custom built in microcement vanity Pin

This time, we used untinted Microtek microcement which dries to an off-white. The entire bathroom was covered in two coats over the course of two daysโ€”walls, ceiling and vanity.

diy custom built in microcement vanity Pin

It’s applied with a trowel, and can be smoothed down depending on your preference with various tools like squeeges and sponges.

diy custom built in microcement vanity Pin

There’s a bit of a learning curve and it takes some practice to get your desired technique down. A concrete sanding stone is key to making it look finishedโ€”especially around tricky corners and edges.

diy custom built in microcement vanity Pin

But the result is well worth it! Note that you could also finish the vanity with drywall, mud and paint rather than microcement. You could even experiment with venetian plaster as an alternative, but microcement is an ideal option for wet areas like bathrooms.

diy microcement bathroom vanity with gray quartz countertop and wood tile showerPin

To protect the finish, you’ll want to use a matte sealer over the entire surface (we coated our walls as well).

diy microcement bathroom vanity with gray quartz counterPin
diy microcement vanity with gray quartz counterPin

Total cost

The cost will vary depending on the size of your vanity, and doesn’t include the countertop as that will entirely depend on what you choose. Here’s a breakdown of what we used:

Lumber$30
Cement board, tape $25
Waterproofing membrane$60
Microcement$35
Sealer$30
Total$180

We already had the lumber, waterproofing, some cement board and sealer leftover from previous projects so our actual total was around $50. Even with the cost of the custom countertop fabrication, this vanity cost less than a typical double vanity this sizeโ€”and we have something completely one-of-a-kind and high end!

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If you’re looking for a cost-effective alternative to a standard bathroom vanity and love the clean, minimalistic aesthetic, I’d highly recommend this as an option. Let me know if you enjoyed this project or if you have any questions about the build. Happy to answer in the comments or over on my Instagram!

Next week, I’ll be sharing my top free online vintage art sources by popular demand. It’s going to be packed with helpful info, so stay tuned!

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Want more bathroom inspo? Check out these posts:

  1. DIY Microcement Bathroom
  2. Modern Mediterranean Bathroom Reveal
  3. Modern Moroccan Bathroom Reveal
  4. Minimalist Mediterranean Bathroom Reveal
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Comments

  1. Michele Cooley says

    September 11, 2025 at 1:55 pm

    You have so many great ideas and tutorials. Thank you. I have seen that you have worked with venetian plaster as well as microcement. Can you please give me a little comparison in terms of work and looks? I am thinking of covering walls in one. Thanks so much

    • Jenna Sue says

      September 21, 2025 at 9:40 pm

      Hi Michele, plaster is smooth and closer in application to drywall mud. It’s more delicate and must be sealed for protection. I’d say its also easier to apply. Microcement dries harder and is more durable for a bathroom.

  2. Wendy Rosenthal says

    May 1, 2023 at 12:56 pm

    Can you tell all local sources, I live outside of Tampa. So fabricator etc. TIA

    • Jenna Sue says

      May 4, 2023 at 9:11 am

      We used Granite World for the stone fabrication.

  3. Tricia Defilippis says

    April 14, 2023 at 6:30 pm

    Hello, this is so beautiful! Iโ€™ve been trying to work out numbers for my own bathroom, and one bag of surecret says 200-300 sq ft and Amazon has it for $96 a bag. How many sq ft did you cover? You said you did 3 walls and the vanity for $35โ€ฆ? So 1/3 of the bag?

    Thank you for such great ideas!

    • Jenna Sue says

      April 17, 2023 at 12:24 pm

      Hi Tricia, we purchased it locally and it was only $35/bag. We only needed one bag for the entire bathroom. I hope this helps!

  4. Linda says

    April 7, 2023 at 8:46 pm

    Hi I love that look! How durable is the microcement and can it be cleaned well? I’m considering doing this in our two rental villas but it would have to be very durable and cleanable. Also, would it work for a tub tap ledge or would that be too much water moisture to deal with?

    • Jenna Sue says

      April 11, 2023 at 8:32 am

      One of the main benefits of microcement is durability. We haven’t had to clean ours yet but a good sealer should protect the finish. Make sure to check out this post with lots of good info! https://www.jennasuedesign.com/diy-concrete-bathroom-walls-with-microcement/

  5. Andrew says

    March 23, 2023 at 11:41 pm

    Can you provide the measurements used?

    • Jenna Sue says

      March 27, 2023 at 8:58 am

      The vanity is around 55″w overall, and standard counter height (~35″)

  6. Ivory says

    March 22, 2023 at 10:18 pm

    Omg, you did it again. I love this bathroom. High end look? Oh yes, and then some. I wish you could come to our house and help me reach this gorgeous look in my house. You never disappoint. Thanks for sharing.

    • Jenna Sue says

      March 27, 2023 at 8:56 am

      So glad you like it, Ivory!

  7. Debra Lynn Heckert says

    March 22, 2023 at 8:10 pm

    This project and tutorial are simply brilliant. Thank you so, so much!

    • Jenna Sue says

      March 27, 2023 at 8:56 am

      Thank you Debra!

  8. Allison H says

    March 22, 2023 at 8:08 pm

    Knocked it outta the park once again! I love this vanity!

    • Jenna Sue says

      March 27, 2023 at 8:56 am

      Appreciate it Allison!

  9. Nicole says

    March 22, 2023 at 10:50 am

    Seriously LOVE the design! Thank you for sharing!!

    • Jenna Sue says

      March 22, 2023 at 11:17 am

      Thanks Nicole, happy to share!

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Hi, Iโ€™m Jenna and Iโ€™ve been designing and DIYโ€™ing my way through homes since 2008. Join me as I learn, share my experience, and hopefully encourage/inspire you along the way!

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Hi, Iโ€™m Jenna and Iโ€™ve been designing and DIYโ€™ing my way through homes since 2008. Join me as I learn, share my experience, and hopefully encourage/inspire you along the way!

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