A Wide-Format Vessel Sink Built for Statement Vanities
The Karran Sternhagen SQS300WH is a vessel-mount, single-bowl bathroom sink in White quartz composite, designed to sit above the vanity surface as a visible centerpiece. At over 32 inches wide, it brings generous basin space to master bath vanities and double-sink layouts where presence and practicality both matter.
Key Features
• Quartz composite construction blends 80% natural quartz with 20% acrylic resin for a surface that resists scratches, stains, chips, and heat in daily bathroom use.
• Vessel-mount installation positions the bowl above the counter, making it a prominent design feature on any vanity top.
• Single-bowl configuration delivers an uninterrupted basin across the full interior width, maximizing usable workspace.
• White finish coordinates cleanly with a wide range of vanity materials, countertop colors, and faucet finishes.
• Part of Karran's Sternhagen collection, a dedicated line of quartz vessel bowls engineered for above-counter bathroom installations.
Where This Sink Fits the Job
At 32-1/8 inches wide, this sink suits master bath vanities with double-sink runs or wide countertop spans where a standard vessel bowl would look undersized. The vessel installation keeps the bowl fully above the counter surface, so no countertop cutout is required for the bowl itself — only the drain opening. That makes it a practical choice when retrofitting an existing stone or solid surface top without opening a full undermount pocket. The single-bowl layout is well suited to primary bathrooms where the sink sees heavy, routine use and a divided basin would only get in the way.
Material and Finish
Quartz composite at the Sternhagen's composition — 80% natural quartz and 20% acrylic resin — is substantially denser and harder-wearing than a molded acrylic or vitreous china bowl of comparable size. The material is highly scratch resistant, stain resistant, chip resistant, and heat resistant, which matters in a primary bath that handles makeup, grooming tools, and everyday use without a second thought. The White colorway runs through the full material depth, so edge chips, when they do occur, do not expose a contrasting substrate beneath the glaze. The non-porous surface cleans easily without special products.
Who Orders This Sink
Cabinet shops and vanity fabricators specifying for master bath remodels will find this sink a reliable anchor for wide double-vanity builds, where the 32-inch footprint justifies dedicated countertop real estate per basin. Interior designers and homeowners renovating a primary bathroom appreciate the quartz composite's durability alongside a clean, timeless White finish that ages well with changing hardware trends. Contractors working on high-use bathrooms — vacation rentals, primary suites in multi-unit builds — value the material's resistance profile over the longer service intervals those environments demand.
What faucet height does a vessel sink this size require?
Because the bowl sits above the counter, a standard deck-height faucet will not reach comfortably into the basin. Plan for a tall vessel faucet or a wall-mount faucet that clears the bowl's 5-1/8 inch depth and the counter thickness combined. Confirm the faucet's spout height and reach against those two measurements before ordering.
Does this sink include a drain?
No drain assembly ships with this sink. A compatible vessel drain sized for the bowl's drain opening should be ordered separately to complete the installation.
Is quartz composite suitable for a bathroom environment?
Yes. Quartz composite handles the humidity, temperature fluctuations, and surface contact typical of a bathroom without issue. The material is non-porous and does not harbor mold or mildew the way grout lines or surface-finished ceramics can over time.
Can this sink be installed on any countertop material?
Vessel sinks rest on top of the counter rather than into it, so the countertop material needs only to support the sink's weight and accommodate the drain opening. Stone, solid surface, laminate, and wood vanity tops are all common pairings. Confirm that the countertop's thickness and surface treatment are compatible with the silicone bead or mounting method used to stabilize the bowl.
How does this sink's width affect vanity planning?
At just over 32 inches wide, this sink occupies a significant share of a standard 36-inch vanity top when used solo. It works best on wider tops — 48 inches and up — or in double-vanity configurations where each sink has its own zone. Factor the 18-1/4 inch depth into countertop front-to-back planning as well.
A Durable Centerpiece That Works as Hard as It Looks
The Sternhagen SQS300WH delivers the visual impact of a wide, above-counter quartz bowl with the day-to-day durability that busy bathrooms require — a combination that holds up well past the first project and into the next renovation cycle.
