A grooved-stile shutter has a shutter frame with elongated stiles, inserts, louver end caps and louvers. The stiles define grooves disposed along opposite facing stile edges. The elongated inserts are installed into the stile grooves. The louver end caps rotatably mount along the inserts. The louvers removably mount to the louver end caps within the shutter frame. In this manner, the louvers can be individually removed and replaced without disassembly of the assembled shutter frame.