Step 3 · Mark Vanity Height and Width
Consult your vanity specification sheet to find its finished height (including the countertop) and total width. Measure up from the finished floor and make a mark for the top of the vanity. Use your level to draw a light, horizontal line across the wall at this height. This helps you visualize the vanity's final position. Next, using your centerline as the reference, measure out half of the vanity's total width to the left and mark it, then repeat for the right side. This shows the cabinet's final footprint on the wall.