Wood window trim encompasses a range of wooden boards that frame and enhance the aesthetics of windows. These boards include sills that support the window frame, casings that cover the joint between the window and wall, crowns that adorn the top of window frames, baseboards that run along the bottom of windows, architraves that flank the sides of windows, friezes that add decorative details, and pilasters that provide architectural interest. Each type of trim serves a specific function and is crafted from various wood species like oak, maple, mahogany, and pine, offering unique textures, grains, and color tones.