Enjoy wide-open access to your outdoor plumbing with the Challenger Designs 27-Inch Double-Door Sink Base. This pre-assembled aluminum cabinet provides a spacious, weatherproof foundation for your sink, making installation and maintenance easier than ever. It is available in three door styles to match your kitchen’s design: Shaker, Ribbed, or Pan.
This is a “27”” wide “SINK BASE” with a “Double Door” design, built to a full “28”” depth. The top features a “FALSE PANEL” to accommodate a wide range of undermount sinks, while the all-aluminum construction guarantees a lifetime of rust-proof performance. The dual gasket-sealed doors protect the under-sink area from the elements.
The expansive interior is designed with “NO SHELF, NO DRAWER”, providing a large, unobstructed cavity that is ideal for complex plumbing, water filtration systems, or garbage disposals. You can customize the cabinet’s exterior by selecting from an extensive range of powder-coat colors, hardware options, and your preferred door design.
Key Features:
- All-Aluminum Construction: A weatherproof and rust-proof build for a durable, maintenance-free cabinet.
- Double-Door Access: Two doors provide a wide, unobstructed opening to the under-sink area.
- Sink-Ready Design: A “FALSE PANEL AT TOP” is designed to accommodate your choice of undermount sink.
- Open for Plumbing: The “NO SHELF, NO DRAWER” interior simplifies all plumbing and accessory installation.
- Three Door Styles: Available in Shaker, Ribbed, or Pan designs to create a custom look.
Specifications:
- Shaker Item #: OSB-273528-S
- Ribbed Item #: OSB-273528-R
- Pan Item #: OSB-273528-P
- Description: “27”” SINK BASE”
- Door Hinge: Double Door
- Depth: 28″
Note: This is a double-door sink base cabinet. The sink, faucet, and countertop are sold separately. Please be sure to specify your door style, color, and handle choices when ordering.


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