Cornrows are achieved by hair picked and joined in a row or pattern on the head. It can be done with overhand or underhand technique. Some people refer to this technique as “French braids” while others call it “cornrow” or “canerow”. The hair has to be about two inches or longer for cornrows to be done. If the hair is tightly curled, we may be able to cornrow it if it is under 2 inches but we will have to add synthetic hair extensions. Generally, most cornrow styles will last 1 to 2 weeks but it depends on your hair texture. Cornrows tend to last the longest on tightly curled hair.