If you are looking to have that style 63mm slat size is the traditional size. Classic is defined as a simple, elegant timeless style of the highest quality that isn’t subjected to changes in fashion trends. Classic never goes out of style it is around for the long haul. If you are looking to create an interior that will last for years to come classic is the way to go.
When it comes to shutter design a classic look translates to a smaller louver. A smaller louver means more louvers per panel of shutters, which decreases the amount of light coming into the room. Classic shutters are perfect in rooms that have a street view as they allow for more privacy then a larger slat size. The smaller louver also gives a cosier feel to the room. The classic shutter slat has been around for the longest for one simple reason it is a timeless simple design that drew customers to shutters in the first place.
However if you want the classic style but also more light flowing into the room you could always try café style shutters. This shutter style is only installed on the bottom half of the window allowing light to flow into the room but still providing the room some privacy, giving you the best of both worlds.
To complete your classic style shutters colours recommended would be white, neutrals or a dark rich wood stain if going for a more sultry and classic interior. For a classic interior a high quality wood shutter such as the hard basswood range would probably be the most suited to this style. This is because the style is timeless so you need a shutter material that will last a long time and is of a high quality. The traditional style tilt rod can be placed in the centre or offset to the side of the shutter panels and is also another feature that is likely to complement your classic interior.