How to Install Large Interior Porcelain Slabs: A Comprehensive Guide

How to Install Large Interior Porcelain Slabs

Table of Contents

Installing large-format tiles requires preciseness, attention to detail, and skilled hands. By preparing the substrate, choosing the right grout joint size, selecting the appropriate trowel, and ensuring proper mortar coverage, the large porcelain slab can be installed in the best way possible.”

You may have heard about the large interior porcelain slabs. Large porcelain slabs are gaining popularity for interiors. They offer a sleek look, durability, and low maintenance. They are also popular for their durability and aesthetic looks. The large porcelain slabs may have a size up to 3m in length. Because of their large size, they offer little to no grout lines and a clean surface throughout the room or surface. However, the problem is that, the larger the size the more skilled hands are required for installation. 

Installing large interior porcelain slabs can be tricky. In this guide, we will guide you through the entire process step-by-step. We assure you that you will achieve a professional finish without the need for a professional budget.

Install Large interior Porcelain Slabs

How To Install Large Interior Porcelain Slabs?

Here is our simple yet comprehensive guide for installing large porcelain slabs.

Step 1: Planning and Preparation

This is one of the critical aspects that should be done before installing large interior porcelain slabs. Before installation, it is best to map it out to get its layout right. Yes, don’t rush with the selection of the payout plans and ideas. Try to select more carefully. Even space is required for better installation of large interior porcelain slabs. If everything is OK then continue doing the following:

1.1 Measure Your Space

Start by measuring your space. Accurate measurements matter a lot in this regard. This will also help you to get the right amount of material. Here is what you can do:

  • Measure the length and width of the space.
  • Multiply the length by the width to get the square footage.
  • Add about 10% extra to your total for cuts and waste.

1.2 Choose Your Porcelain Slabs

Another important decision is the selection of the large interior porcelain slabs. In that case, if you would like to achieve the best look, then you should invest in the right type of large interior porcelain slabs. A harmony between the slab and your interior, style, and budget should be your goal. The following should be considered when choosing the right porcelain slab for your home. 

  • Size: The larger the size the minimal grout lines are. With fewer grout lines you will have a more seamless appearance. 
  • Color and Finish: Choose a color and finish for the tile that suits your existing decor.
  • Thickness: Thicker slabs are more durable but may be more challenging to cut and install. But you choose a rather mild one.

1.3 Gather Your Tools and Materials

Next, you will need to have the right tools on hand. They will make the installation process much easier and more convenient. You will need:

  • Porcelain slabs
  • Tile adhesive (thin-set mortar)
  • Notched trowel
  • Level
  • Tile spacers
  • A wet saw with a diamond blade
  • Grout and grout float
  • Tile cutter (for smaller cuts)
  • Measuring tape
  • Chalk line
  • Rubber mallet
  • Sponges and clean water

Step 2: Surface Preparation

Depending on the nature of the building project, you will require a flat surface for large interior porcelain slabs. But not just any flat, a clean and flat surface is crucial to this and to give the very best look. The surface should be smooth, without dirt, dust, grease, and other accumulated elements on it. If the target area is damaged, loose, or uneven then repair it. Ensure the desired space on which you are laying the tile is in a direct line with an even terrain. Trim, molding, appliances, etc; all parts should be removed and cleaned.

2.1 Check for Levelness

Begin by performing basic checks such as level checks to find out how even the floor is. For instance, the raised areas on the floor should be sanded at a higher level first. In the case of low places, apply a leveling to enhance the flatness of the floor that you want to install.

2.2 Dry Layout

Ensure that your slabs are nicely arranged in how you would wish them to be before adding the adhesive. It is advised to look at the slabs and see if the layout is equal. Make guidelines of reference immediately to make sure that the slabs are well aligned and use chalk to make the lines.

Step 3: Installing the Slabs

After preparing the surface you will need to install the slabs now. This is the most critical part so take care of it as much as you can:

3.1 Apply the Adhesive

Start applying the adhesive to a small section of the floor with a notched trowel. You should start from the center and work your way out.

  • Direction: Start spreading the adhesives in straight lines. You should create grooves for better adhesive application. 
  • Coverage: Make sure you have applied an even layer of adhesive to avoid air pockets.

3.2 Lay the First Slab

After applying the adhesive, place your first large interior porcelain slabs. Place it firmly for better placement.

  • Alignment: Use your reference lines to ensure the slab is straight.
  • Leveling: Tap the slab gently with a rubber mallet to ensure it’s level.

3.3 Continue Laying Slabs

Keep laying the slabs in the area. Place one slab at a time. Use tile spacers to maintain even gaps between them.

  • Level Check: Keep an eye on each slab level. Every slab should be leveled with the adjacent slabs.
  • Clean Excess Adhesive: Remove any excess adhesive that’s stuck between the slabs.

 

Installing Large Interior porcelain Slabs

3.4 Cutting Slabs

Slabs will be laid out perfectly and evenly around the edges and corners with right cuts around corners. Measure and mark where cuts are needed.

  • Wet Saw: Use a wet saw with a diamond blade to make precise cuts.
  • Safety: Always wear safety goggles and gloves when cutting slabs.

3.5 Grouting

After the tiles are tiled, you can grout them. Before grouting, check with your supplier about sealing requirements – CG2 is the minimum. The consistency should look like peanut butter. Use a grout float to spread the ground on the selected surface diagonally and check the gaps. Make sure the gaps are filled evenly. Use a damp sponge to wipe away any excessive grouting between the slabs.

Step 4: Final Touches

Now the tiles are laid out and grouted you will need to add some final touches to complete the installation of the large interior porcelain slabs. You will need to clean the surface now once the grout is set. Use a damp sponge to clean any haze on the slab. Also, if you want to retain the beauty of the slabs for longer then applying a sealer is a great idea. Use the most compatible porcelain slab sealer. Follow the manufacturer’s instructions for a better idea.

Step 5: Enjoy Your New Space

Now the large interior porcelain slabs have been installed, it is time to enjoy the best look of your space. This was sure a technical task but you should feel proud of your hard work. Now place your desired couch in this area, sip some cold coffee, and enjoy.

Maintaining The Large Interior Porcelain Slabs

Though installing the large interior porcelain slabs can be a daunting task maintaining them shouldn’t be. Here is what you can do regarding this.  

  • Regular cleaning

The porcelain slab is a low-maintenance tile. You can just regularly clean it and it will retain its look for years to come. Also, know how to clean porcelain.

  • No Harsh Chemicals

Harsh chemicals can make the porcelain slab look dull and discolored over time. Also, they can damage the surface as a whole. Always use a low Ph leveled porcelain paver cleaner. Check the packaging for a better idea.

  • Immediate Spill Cleanup

If there is a spill on the slab of any type, especially coffee, oil, or anything like that, it is recommended to clean them immediately. They might damage the grout between the slab.

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Final Words on Large Interior Porcelain Slabs Installation

Installing large tiles can be a daunting task especially when it is your first time with such a task. However, with the help of the right tools and guidelines, you can install these large interior porcelain slabs and give your interior the look that you always wanted. Porcelain slabs can effortlessly enhance the overall appeal of your interior and offer you durability for years to come. Just make sure to follow our guide and perform each step slowly and precisely. Do not rush for a better experience. Read also our blog on why large porcelain slabs are ideal for open-concept spaces.

About the Author

NT Pavers Team

NT Pavers delivers premium natural stone and porcelain pavers, perfect for patios, driveways, and outdoor spaces. Specializing in durable and stylish materials like travertine and marble, NT Pavers transforms landscapes into elegant and functional areas.