Stacked stone cladding is a stylish and durable way to enhance the appearance of walls, fireplaces, outdoor spaces, and more. Whether you are adding it to your home’s exterior or interior, proper installation is crucial for a long-lasting and professional-looking finish. In this guide, we will walk you through the entire process, from preparation to final touches.

Tools and Materials Needed

Tools:

• Tape measure
• Level
• Trowel
• Notched trowel
• Circular saw or angle grinder with a diamond blade
• Rubber mallet
• Spirit level
• Bucket
• Mixing paddle
• Paintbrush
• Sponge
• Chalk line
• Pencil or marker

Materials:

• Stacked stone cladding panels or loose stones
• Cement backer board (if required)
• Mortar or thin-set adhesive
• Grout (if applicable)
• Sealer (for natural stone)
• Water-resistant membrane (for exterior applications)
• Metal lath (if applying over drywall or wood surfaces)
• Galvanized screws or nails

Step 1: Surface Preparation

Before installing stacked stone cladding, ensure that the surface is properly prepared for a strong and durable bond.

1.1 Assess the Surface

• Concrete and masonry walls can directly support stacked stone cladding.
• Drywall and wooden surfaces require extra preparation, such as installing a cement backer board or metal lath with mortar.

1.2 Clean the Surface

• Remove any dirt, dust, grease, or loose particles from the surface.
• Use a wire brush or pressure washer (for exteriors) to clean masonry surfaces.

1.3 Install a Water-Resistant Barrier (For Exterior Applications)

• Apply a waterproof membrane to prevent moisture penetration, especially in outdoor or wet areas.

Step 2: Layout and Design Planning

Proper planning ensures a professional and aesthetically pleasing outcome.

2.1 Measure the Area

• Use a tape measure to calculate the square footage needed.
• Purchase an extra 10–15% material to account for cuts and breakage.

2.2 Dry Fit the Stones

• Lay out the stacked stone pieces on the ground to visualize the design.
• Arrange them to ensure a natural look with minimal repeating patterns.

2.3 Mark Guidelines

• Use a chalk line or level to mark horizontal guidelines to keep the stones aligned.

Step 3: Applying the Mortar or Adhesive

Using the right adhesive is key for strong and long-lasting installation.

3.1 Choose the Right Adhesive

• For indoor applications: Use a high-quality thin-set mortar.
• For outdoor applications: Use polymer-modified mortar for better adhesion and weather resistance.

3.2 Mix the Mortar

• Follow the manufacturer’s instructions to mix mortar to the correct consistency (should be thick but spreadable).

3.3 Apply the Adhesive

• Use a notched trowel to spread the mortar onto the wall.
• Apply a back buttering technique to the stones for better adhesion.

Step 4: Installing the Stacked Stone Cladding

4.1 Start from the Bottom

• Begin installation at the bottom corner and work your way up.
• Press each stone firmly into the mortar, using a slight twisting motion.

4.2 Check for Level

• Use a spirit level to ensure the stones are aligned properly.
• Adjust with a rubber mallet if necessary.

4.3 Stagger the Joints

• Avoid lining up vertical joints for a natural and seamless look.
• Cut stones with a circular saw or angle grinder to fit edges and corners.

4.4 Install Corner Pieces First

• If using pre-made corner pieces, install them before filling in the flat surfaces.

Step 5: Grouting (If Applicable)

Some stacked stone panels do not require grout, but if you are using individual stones, follow this step.

5.1 Choose the Right Grout

• Use a grout color that complements the stone.

5.2 Apply Grout

• Use a grout bag or trowel to fill the gaps between stones.
• Wipe off excess grout with a damp sponge before it hardens.

Step 6: Sealing and Finishing Touches

6.1 Clean the Surface

• Remove dust and excess mortar with a damp cloth or sponge.

6.2 Apply a Sealer

• If using natural stone, apply a stone sealer to protect against moisture and stains.
• Use a paintbrush or sprayer for even application.

6.3 Final Inspection

• Check for loose stones and reinforce with adhesive if necessary.
• Ensure all edges and corners are properly aligned.

Step 7: Maintenance and Care

7.1 Regular Cleaning

• Wipe down the surface with a damp cloth to remove dust and debris.
• Use a mild detergent for deeper cleaning when needed.

7.2 Resealing (For Natural Stone)

• Reapply sealer every 1-2 years to maintain protection against moisture and staining.

7.3 Inspect for Damage

• Check periodically for loose or damaged stones and repair as needed.

Conclusion

Installing stacked stone cladding is a rewarding DIY project that can significantly enhance the beauty and value of your home. By following the proper preparation, installation, and maintenance steps, you can achieve a stunning and durable finish that lasts for years. Whether used indoors or outdoors, stacked stone cladding adds a timeless and elegant touch to any space.