assembly 10 will include one less mating member 18 than the number of batten slats 14 thus each mating member 18 will straddle adjacent batten slats 14 as is best represented in fig2 each mating member 18 is affixed to the cross slat 16 and to the batten slats 14 by the plurality of apertures or mating attachment points 52 the attachment points 52 may comprise sonic welds alternatively the attachment points 52 comprise heat welds generally sonic welds will be utilized when making an attachment point 52 to a visible decorative surface 20 30 it should be noted that the decorative shutter assembly may have any number of batten slats 14 e g four each cross slat 16 includes the mating member 18 and the first front plane 20 the batten slats 14 include the batten decorative surface 20 each batten slat 14 also includes two side flanges 36 and two end flanges 40 the two side flanges 36 and the two end flanges 40 define an batten interior volume on an opposite side of the batten decorative surface 20 in one embodiment the batten slats 14 are manufactured in predetermined lengths e g 60 inches in order to assembly a shutter assembly 10 having an overall length other than 60 inches one or more batten.