Begin your vanity setup by utilizing an electronic stud finder to locate the primary structural wall studs behind your plumbing layout, marking their center points with a pencil. Secure a heavy-duty steel mounting bracket horizontally across the studs using robust structural lag screws to handle heavy weight loads safely. Slide the pre-drilled floating vanity cabinet chassis onto the wall ledger, fastening the internal frame anchors tightly until the unit sits completely flush against the wall tile. Install a solid white quartz countertop outfitted with undermount ceramic sinks to ensure a seamless, easy-to-clean edge. Complete the setup by running sleek plumbing lines beneath, wrapping any exposed pipes in clean, matte matching covers.