DIY projects banner

What is the difference between sanded and unsanded grout?

Are you someone looking to re-lay their worn-out backsplash in the kitchen? Have you recently chanced upon some of the most beautiful tiles that you think will look fantastic on your doorway? Are you standing in the isles of home improvement stores thinking what kind of grout will go best with them? Are you still confused? What’s the difference between sanded and unsanded grout? If you are a DIY enthusiast, you will most likely be doing a home project with tiles but cannot decide what grout you need to pick up. Allow us to hold your hands through this.

What is grout?

Grout is putty that goes between the tiles and fills up the empty spaces between them. Grout is essential to keep the tiles in their place. There are two types of grout and confusion crops when you decide which one to pick.

Grout is putty that goes between the tiles

SaleBestseller No. 1
BLACK+DECKER Random Orbit Sander, 5-Inch...
  • HIGH EFFICIENCY - Delivers 12000 OPM (orbits...
Bestseller No. 2
Makita BO5041 5" Random Orbit Sander,...
  • Smoother and faster sanding with 3.0 AMP...
  • Variable speed control dial (4,000-12,000...
Bestseller No. 3
Makita BO5030K 5" Random Orbit Sander, with...
  • Smooth and fast sanding with 3.0 AMP motor...
  • Rubberized grip for improved operator comfort...

Why is grout important?

There are two very important bonding materials used when tile lying is undertaken.

Under the bed or the layer of bonding material used before the tile-laying is the mortar. The mortar is almost invisible once the tile work is complete. More than 90% of the structural stability of the tile is due to the mortar.

Once the mortar dries well and hardens, the grout gets filled in the spaces between the tiles. The grout is nicely filled with the edges of the rubber float. The float scraped diagonally across the tiles helps to fill it in space. All excess grout can be easily cleaned using the clean edge of the float.

Although grout does not improve the installation’s structural stability, it does fill up all spaces, literally sealing them from dust or other debris. Unlike mortar, grout is completely visible. Using various colors of grout can make the tile work look exotic and eye-catching. In a way, grout is essential but nevertheless functional too.

There is a reason why home improvement DIYers get extremely confused, standing in front of the store shelves. There is so much variety that even a seasoned contractor can get confused!

Grout comes in two varieties

The right grout for your project will make all the difference in its final appearance and its life. Therefore, it is of paramount importance that you think twice and make the right call when you are shopping for grout for your home project. Once you understand the difference between sanded and unsanded grout, picking it up for dealing with a project at hand is going to be a cakewalk for you!

SaleBestseller No. 1
DEWALT 20V MAX Random Orbit Sander, 5-Inch,...
  • Orbital sander with brushless motor provides...
  • Variable-speed control of the hand sander...
SaleBestseller No. 2
DEWALT 20V MAX Orbital Sander, Tool Only...
  • Orbital sander with brushless motor provides...
  • Variable-speed control of the hand sander...
Bestseller No. 3
BLACK+DECKER 20V MAX Random Orbital Sander,...
  • FAST MATERIAL REMOVAL – At 12,000 opm...

Sanded Grout

Sanded grout has finer particles of sand in it and thus the name. It is one of the most common types of grout because it is pocket-friendly and comes in a wide palette of colors.

Unsanded grout

Unsanded grout, as the name itself suggests, does not contain any sand or other finer particles. Instead, it uses polymers as bonding agents. The putty is extremely smooth in texture and costs high.

Sanded Vs Unsanded Grout

Because we want you to choose a perfect grout for your DIY, we decided to do a comparative analysis. It will help you understand which one between the two types of grouts is good for use.

Sanded grout is bound together well with very fine sand particles. As the grout cures, these sand particles will suspend, making it more stable, more resistant, and less shrinking. It also makes it less prone to cracking.

Sanded grout is easily available at most home improvement stores. You will also find it in stock throughout the year in online stores and various e-commerce websites. It is very popular among people who work around tiles for two main reasons:

  1. It is easy on the pocket.
  2. It comes in different hues.

Unsanded grout, on the other hand, has absolutely no sand added to it. In its place, it has Portland cement, various pigments, and water. If you are looking for something hardier, you may choose epoxy grout with resins and a hardening agent.

Cement-based unsanded grout is usually preferred in residential projects where the work involves using the grout between floor tiles and tiles on the walls. Epoxy grouts are mostly preferred in commercial projects where they will probably have more footfalls and can withstand exposure to harsher materials, for instance, grease, paint, pigments, and acids.

What to use: Sanded or unsanded grout?

It is important to use the right grout for the application that you are handling. Many of us have had no one to tell us what grout works best end up learning the hard way. Thankfully, this article will help you understand the flooring applications and the best grout that you must use.

Bestseller No. 1
5-Inch 8-Hole Hook and Loop Sanding Discs...
  • MEETS ALL YOUR NEEDS - Including 10pcs of...
  • HOOK & LOOP - Easy installation and removal,...
SaleBestseller No. 2
S SATC 72 PCS 5 Inch 8 Hole Hook and Loop...
  • TOTAL 72PCS:12 Pcs of 40 grit,10 Pcs of each...
  • GOOD ADHESIVE:Velcro backing,easy to stick to...

Go for unsanded grout in the following places

Sanded vs. Unsanded Grout based on their location of use

You can use sanded grout on

You can use unsanded grout in

Are you a DIYer that works around wood, plastic, and metal, smoothing and polishing them? Then, you will perhaps want to know more about orbital sanders as well!

There are many types of sanders, but orbital ones have our hearts. The main reason is that it makes work easier by reaching all corners, thanks to its square edges. It is simpler and also less expensive than other sanders. You will need a sandpaper sheet of about ideally 9×11 in size. You can buy ready cut sheets from your local hardware store, or you can reuse the old sanding sheets from your orbital sander if you have one.

If you were to ask why we are all for orbital sanders, then it’s because we like its versatility. It is also easy to get started with them with regular-sized sandpaper. They are allusively aggressive, and they do not leave marks while sanding. There aren’t many things to not like about them. They are best for light sanding on surfaces.

Are you preparing a surface to paint or to seal? Grab an orbital sander, and you are great to go!

Cash-strapped! No problem, there are plenty of orbital sanders under $100 and some substantially below that price point. Don’t wait too long to get your dream power tool. Sometimes, the inspiration for great DIY comes from the right type of tools.

Frequently Asked Questions

  1. Why do interior decorators opt for sanded grout for tile joints that are between ⅛”- to ½” thick?

Contractors and interior decorators worldwide use sanded grout for tile joints that are between one-eighth and half of an inch because fitting bulkier grout into anything thinner than that means either the project turns out to be messy and ugly. It is quite prone to cracking even if you do with utmost care.

Pin holing is another concern where workers add more water to the sanded grout to fit into tiny spaces. Initially, the idea may seem to work, but as time passes and excess water evaporates, it destabilizes the tile work and looks messy and unpresentable.

  1. I have a joint size that is greater than three-eighth of an inch. What grout should I use?

When you have tile joints that are thicker than 3/8th of an inch, you have to go for a specially created grout called a wide-joint mixture. The wide joint mixture is heavily saturated with sand to give added stability to the structure or holds the tile well.

  1. I want to install tiles in the shower in my bathroom. What type of grout can I use?

If you are redoing your bathroom shower tiles, then the right type of grout will protect the wall from damage from all the splashing of water. It will also keep it looking new for years to come after installation. Whatever grout you choose will depend on the tile joint’s size and the material of tile that you are installing. In most cases, unsanded grout is better in such circumstances. It sticks well and without any slump on vertical surfaces.

  1. What is a tile joint? How long does the grout take to cure?

Tile joint is the space between the two tiles next to each other. Space so formed while laying is where exactly the grout is nicely filled. All grout applications need to cure for at least 48 hours before you can use the area.

  1. Do I need a sealant after I use grout?

When you use sanded grout, it is very important to seal it after installation with a pH-neutral water-based sealer. The sealing prevents water from seeping to the back of the tile and wetting and running down the mortar. Some sanded grouts in the market nowadays boast of being a modified formula and do not need sealing. Unsanded grout does not need sealing because of its high polymer content and low porosity.

  1. Why is unsanded grout costlier than sanded grout?

Unsanded grout is twice as costlier than sanded grout. Sand is cheap, and it forms the majority of sanded grout. Unsanded grout needs more expensive substances such as polymers to form the content, thus, making it a costly proposition for DIYers around the country.


When confused over sanded grout versus unsanded grout, remember the trick to determine the best choice between them lies in only two things. The first is the choice of the tile that you are working with, and the second is the joint size available for filling between the two tiles. Hopefully, with this, you will be able to make an informed choice about what grout to pick when you are at the home improvement store. If you think that someone needs to clear their head on unsanded vs sanded grout, don’t forget to share this with them.

Tags: , , , , , , , ,

Categorised in: ,