To create this fluted accent wall, ensure the wall framing is reinforced with half-inch structural plywood backing behind cement backer board to support the weight of solid stone panels. Map out the wall layout from the center line outward, ensuring that the cut edges along the corners are symmetrical. Spread polymer-modified thin-set mortar onto the wall with a half-inch square-notched trowel, applying the mortar in vertical lines that match the panel grooves. Press each fluted limestone panel firmly into the mortar bed, using leveling clips to keep adjacent panel surfaces flush and seams unnoticeable. Leave a continuous two-inch recessed light cove along the upper ceiling perimeter, installing a high-density, warm-white LED light strip within an aluminum diffusion channel. Direct the light downward across the vertical stone flutes to create a warm, architectural glow that highlights the stone’s textures and contours.
