At Signature Shutters, we specialize in custom window treatments. We manufacture Signature Shutter custom wood and PolyWood® interior plantation shutters.Our interior shutters for windows are unique in that we have developed our wooden and Polywood shutters to maintain their beauty over time through superior material selection, construction and assembly. We have a commitment to quality and service with a lifetime warranty. Our wooden shutters feature solid wood construction and our Polywood® shutters are made from high-temperature, environmentally friendly polymers. Both are available in rectangular or custom designs. We offer louver sizes that range from 1 3/4 to 4 1/2 inches and supply our window shutters in painted or stained finishes to match your sample.