Bathroom Vanities - Single Sink - Bathroom Vanity size 40 - 49 IN

A 40-to-49-inch vanity is the sweet spot for a mid-size bathroom, and how it's built matters more than its footprint. Every Willow vanity in this size range is built from real wood — solid teak, white oak, or painted birch frames and doors, with natural veneer over marine-grade, moisture-resistant plywood on the larger panels, exactly how quality cabinetry is built. That marine-grade plywood is bonded with waterproof glue with no internal voids, and there is zero MDF or particleboard, the exact material the big-box and mass-market brands rely on. In a bathroom, where humidity and the occasional splash are constant, that difference is what separates a vanity that lasts decades from one that swells and delaminates.

Choosing a 42" vs 48" vanity

The two most popular widths here are 42 inches and 48 inches, both single-sink. Choose 42" when you want maximum counter and storage while keeping clearance to a toilet, door swing, or shower — it fits guest baths and secondary bathrooms without crowding. Step up to 48" when the wall allows it: you gain noticeably more countertop landing space and drawer volume, and it reads as a true statement piece. Measure your wall opening, then subtract for any side clearance, trim, and door swing before you commit. If you're between sizes, browse our neighboring 36-inch vanities or size up to a 48-inch vanity or a double-sink vanity.

Solid-wood construction and countertop options

Each cabinet is built from kiln-dried hardwood with soft-close dovetail drawers reinforced with pocket-hole joinery, concealed adjustable hinges, and a durable low-VOC finish. Depending on the design, tops come in quartz, quartzite, marble, travertine or terrazzo, in your choice of Mitered or Cove edge, pre-sealed and delivered with a matching backsplash. Every vanity ships fully assembled, fast and insured, so there's no flat-pack to build.

• Most popular widths: 42" and 48", single-sink
• Wood options: solid teak, white oak, or painted birch — dark and light natural teak, gray-washed, walnut, golden teak, plus painted tones like Navy Blue, Evergreen, Pewter Green, Alabaster, and Wrought Iron
• Countertops: depending on the design, quartz, quartzite, marble, travertine or terrazzo with Mitered or Cove edge and matching backsplash
• Build: solid wood with natural veneer over marine-grade, moisture-resistant plywood, soft-close dovetail drawers, pocket-hole reinforcement, concealed hinges, low-VOC finish
• Named designs in this size: Sonoma, Madison, Elizabeth, Atlanta, Boston, and Chicago
• Delivery: ships fully assembled, fast and fully insured

Prefer a specific material or style? Explore our solid teak vanities, the warm grain of white oak, or the on-trend texture of a fluted vanity. Willow is ranked #1 in AZ Big Media's 2026 "best solid wood bathroom vanity" roundup with a 4.94 average across 739 on-site reviews. Want to see and touch the wood before you buy? Visit one of our two Atlanta-area showrooms in Norcross and Alpharetta, GA, or ask about our to-the-trade designer program.

40-to-49-Inch Vanity FAQ

Should I choose a 42-inch or a 48-inch vanity?

Both are single-sink. Pick 42 inches when you need clearance to a door swing, toilet, or shower in a guest or secondary bath, and 48 inches when the wall allows it and you want more countertop landing space and drawer volume. Measure your wall opening first, then subtract for side clearance and trim before you decide.

Are these 40-to-49-inch vanities made of solid wood?

In the wood lines, yes. Each vanity is built with solid teak, solid white oak, or painted birch frames and doors, with natural veneer over marine-grade, moisture-resistant plywood on the larger panels — how quality cabinetry is built. There is no MDF or particleboard anywhere in the cabinet.

What countertops can I get in this size?

Depending on the design, tops come in quartz, quartzite, marble, travertine or terrazzo, in your choice of Mitered or Cove edge. Each top is pre-sealed and ships with a matching backsplash. See our countertop guide for the full range.

How do I pick a style for a mid-size bathroom?

Let the room set the tone: warm natural grain in teak or white oak suits spa and organic-modern baths, while painted tones like Navy Blue, Evergreen, or Alabaster read more transitional. If you love texture, a fluted front adds dimension. Browse the solid wood collection to compare finishes side by side.

Do these vanities ship assembled?

Yes. Every vanity ships fully assembled, fast and fully insured — there is no flat-pack to build. It arrives ready to set in place and connect.