Step 3 · Mark Mounting Hole Locations
Determine the final height of the sink (standard is 32-34 inches from the floor to the rim). Place the pedestal in its final location. Carefully set the sink basin on top of the pedestal. Press the sink basin level against the wall. Use a torpedo level to ensure the basin is level both side-to-side and front-to-back. Once level, trace the outline of the back of the sink basin onto the wall with a pencil. Also, mark the locations of the mounting holes through the back of the sink. Set the sink and pedestal aside. Use a stud finder to locate the wood studs behind the marked hole locations. If the holes line up with studs, drill pilot holes appropriately sized for the lag screws provided with the sink. If they do not align with studs, you will need to install a wood cross-brace behind the drywall, which is a more advanced task. For this guide, we assume alignment with studs.