12 Inch Bathroom Vanities

Maximize storage and create a truly custom bathroom vanity layout with our collection of 12 Inch 3-Drawer Vanity Base Cabinets. Designed primarily as vanity extension cabinets, these compact storage units are the perfect solution for homeowners, designers, and contractors who need additional drawer space without dramatically increasing the footprint of a bathroom renovation.

Unlike traditional sink base vanities, these cabinets are not designed to accommodate a sink or plumbing. Instead, all three drawers are fully functional storage drawers, providing valuable space for toiletries, cosmetics, grooming tools, linens, and other bathroom essentials. Their narrow 12-inch width makes them an ideal companion to larger vanity bases, allowing countertops to be extended while maintaining a cohesive built-in appearance.

These cabinets are most commonly installed alongside a sink base vanity beneath a shared countertop, effectively increasing both storage capacity and countertop workspace. Whether you're creating a wider single-sink vanity, building a custom furniture-style vanity arrangement, or filling an otherwise unused space in a bathroom design, a 12-inch drawer base offers a practical and attractive solution.

Available in a variety of finishes and styles, our 12-inch vanity drawer bases coordinate seamlessly with matching vanity collections to create a professionally designed look. The additional countertop space created by incorporating a drawer base can provide room for decorative accents, everyday essentials, or simply a less cluttered bathroom environment.

All cabinets in this collection ship Ready To Assemble (RTA) and require assembly prior to installation. Countertops, sinks, faucets, mirrors, and decorative accessories shown in product photography are sold separately.