How to Achieve a Perfect Finish with Interlock Installation? Achieving a perfect finish with interlock installation requires careful preparation, precise measurements, and quality materials. Begin by properly leveling the ground and ensuring proper drainage. Use high-quality interlocking stones, lay them evenly, and fill gaps with sand for stability. Seal the surface for added durability and a polished look. Visit https://thelandscapr.com/interlocking/how-to-achieve-a-perfect-finish-with-interlock-installation/