Board and batten is a wall treatment of wide vertical panels (boards) with narrower vertical strips (battens) covering the seams — historically exterior siding, now widely used as an interior accent wall treatment. Installation begins with a horizontal ledger at chair-rail height, then vertical boards are fastened at consistent spacing, followed by narrow battens centered over the gaps between boards. A cap rail tops the assembly. Material choices include MDF for paint, solid pine, or PVC for moisture locations. RainFire Builders lays out board and batten panels mathematically from the center to ensure balanced reveals at both ends of every wall — not from a corner, which produces unequal panels.