Installation Guide for Terrazzo Flooring


Terrazzo flooring is a popular choice due to its durability, versatility, and aesthetic appeal. If you’re considering installing terrazzo flooring in your home or commercial space, follow this step-by-step guide to ensure a successful installation.

Preparing the Subfloor

Before installing terrazzo flooring, it’s crucial to prepare the subfloor properly. The subfloor should be clean, dry, and free from any debris or contaminants. Start by removing any existing flooring and repairing any cracks or uneven areas. Ensure that the subfloor is level and structurally sound.

Installing Moisture Barrier

To prevent moisture-related issues, it’s essential to install a moisture barrier. This step is especially important if you’re installing terrazzo on a concrete slab. Apply a high-quality moisture barrier, following the manufacturer’s instructions. Allow it to dry thoroughly before proceeding.

Creating Terrazzo Mix

Terrazzo consists of a combination of marble, granite, quartz, or glass chips mixed with a binder. To create the terrazzo mix, follow these steps:

  • Measure the desired amount of aggregate chips and place them in a concrete mixer.
  • Gradually add the binder (typically epoxy or cement-based) while continuously mixing until the mixture reaches a homogeneous consistency.
  • The ratio of aggregate to binder will depend on the desired thickness and appearance of the terrazzo flooring. Consult the manufacturer’s recommendations for specific ratios.

Pouring and Spreading Terrazzo Mix

Once the terrazzo mix is ready, pour it onto the prepared subfloor. Use a trowel or a screed to spread the mix evenly across the surface. Ensure that the thickness of the mix is consistent throughout the installation area. Work in small sections to avoid the mix drying before completing the installation.

Seeding and Leveling

While the terrazzo mix is still wet, sprinkle additional aggregate chips over the surface to achieve the desired appearance. Gently press the chips into the mix using a roller or a float. This process is called seeding. After seeding, use a long-handled trowel or a power trowel to level the surface, ensuring that the chips are embedded and the mix is smooth and even.

Curing and Grinding

Allow the terrazzo to cure according to the manufacturer’s instructions. This process typically takes several days. Once the terrazzo is fully cured, use a floor grinder to grind the surface until it’s smooth and even. Start with a coarse grit and gradually move to finer grits for a polished finish. The grinding process may generate a significant amount of dust, so ensure proper ventilation and wear protective gear.

Cleaning and Sealing

After grinding, thoroughly clean the surface to remove any dust or debris. Use a pH-neutral cleaner and a soft mop or cloth. Once the surface is clean and dry, apply a high-quality terrazzo sealer. The sealer will protect the terrazzo from stains, enhance its appearance, and facilitate maintenance. Follow the manufacturer’s instructions for proper application and drying time.

Ongoing Maintenance

To keep your terrazzo flooring looking its best, implement regular maintenance practices. Sweep or vacuum regularly to remove dirt and debris. Avoid using abrasive cleaners or materials that can scratch the surface. Periodically reapply the terrazzo sealer to maintain its protective properties.