As to blade length, the Florida Supreme Court gave recognition to the 4 inches or less standard as being presumptively “common.” Pocketknives with blades longer than 4 inches do not have the benefit of the presumption.
Well, I see they finally changed their website. It used to claim that there was statewide preemption on knives and there never has been. At least they finally fixed it.if its helpful
Florida Knife Laws | American Knife and Tool Institute
It is unlawful to conceal carry any knife except a common pocketknife. Knives, (but not firearms) may be carried openly subject to location-based restrictions. A holder of a 790.06.www.akti.org