One of the most common questions during extension consultations is: how many rows do I need? And the honest answer is: it depends on your hair and your goal. Here's how we think about it at Welcome & Wanted — and what each row actually adds. What a Row Does Each row of hand-tied weft extensions adds a horizontal layer of hair across a section of your head. The weft sits along the row and fans out below it — adding both thickness and length below that point. More rows = more c