Stiles: The vertical pieces on the left and right side. These need to be hand selected for straightness.

Rails: The top and bottom portion of the shutter.

Louver: The slat or the movable part. This comes in many sizes, however 3.5" is now the most frequently chosen.

Tilt Rod: This is the "stick" that moves the louvers open and closed. It is normally connected to the louver blades by a staple.

Staples: The most common way that the tilt rod is connected to louver. There is one size in the tilt rod, another in the louver

Louver Pin: This part is is inserted in the end of the louver and fits into a hole drilled into the stile