Alpha International U271-25 Stainless Steel Single Bowl Undermount Cutout
Description
The Alpha International U271-25 delivers large-capacity single bowl performance in a 27-inch footprint that balances generous workspace with practical cabinet requirements. This professional-grade undermount sink features a substantial 25x16-inch bowl interior, providing ample room for oversized cookware, commercial-style food preparation, and high-volume dish washing operations. Our precision DXF template includes four cutout variants optimized for stone fabrication professionals working with granite, quartz, marble, and solid surface materials. The 18-gauge commercial-grade 304 stainless steel construction ensures decades of reliable service, while the premium satin finish resists water spotting and maintains its appearance through heavy use. The 1.77-inch corner radius strikes an ideal balance between contemporary aesthetics and functional cleaning access, while the 9-inch depth accommodates tall pots and provides clearance for high-arc faucets with pull-down sprayers.
Dimensions
- Overall Width
- 27"
- Overall Depth
- 18"
- Bowl Width
- 25"
- Bowl Depth
- 16"
- Corner Radius
- 1.7717"
Specifications
- Manufacturer
- Alpha International
- Model Number
- U271-25
- Installation Type
- Undermount
- Bowl Configuration
- Single
- Material
- Stainless-Steel
- Min. Cabinet Width
- 31"
- Downloads
- 0
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The Alpha International U271-25 delivers large-capacity single bowl performance in a 27-inch footprint that balances generous workspace with practical cabinet requirements. This professional-grade undermount sink features a substantial 25x16-inch bowl interior, providing ample room for oversized cookware, commercial-style food preparation, and high-volume dish washing operations. Our precision DXF template includes four cutout variants optimized for stone fabrication professionals working with granite, quartz, marble, and solid surface materials. The 18-gauge commercial-grade 304 stainless steel construction ensures decades of reliable service, while the premium satin finish resists water spotting and maintains its appearance through heavy use. The 1.77-inch corner radius strikes an ideal balance between contemporary aesthetics and functional cleaning access, while the 9-inch depth accommodates tall pots and provides clearance for high-arc faucets with pull-down sprayers.
Installation Overview
The Alpha U271-25 requires a minimum 31-inch base cabinet width, positioning it for larger kitchen layouts including islands, peninsulas, and spacious galley configurations. The template provides four professional installation options: no reveal (25x16-inch cutout for maximum bowl exposure), 1/8-inch reveal (24.75x15.75-inch cutout for refined aesthetics with solid support), 1/2-inch overhang (24x15-inch cutout for maximum stone support and edge protection), and drop-in variant (27x18-inch cutout for top-mount installations). Professional fabricators typically select the 1/8-inch reveal for 3cm granite installations and the 1/2-inch overhang for quartz applications, optimizing the balance between visual appeal and structural integrity. The generous 25-inch bowl width provides exceptional workspace for serious cooks and busy families, while the 16-inch depth dimension accommodates large cutting boards and dish racks. Installation requires attention to cabinet clearances given the sink's size - verify adequate space for plumbing connections, disposal units if applicable, and any under-sink storage requirements. The undercoated insulation with rubber pad construction significantly reduces operational noise, essential for large-capacity sinks that can amplify water sounds in open-concept homes. Stainless steel mounting clips are included with the sink, though professional installations frequently employ two-part epoxy undermount adhesive systems for superior long-term bonding strength, particularly important for larger, heavier sinks. The 3.5-inch drain opening works with all standard basket strainers and garbage disposal units. The 1.77-inch corner radius facilitates thorough cleaning while reducing food particle accumulation compared to sharp-corner designs.
CNC Cutting Notes
This template provides production-ready geometry extracted from manufacturer DXF files with verified dimensional accuracy for professional fabrication. The file structure contains 27 entities organized on layer 0 and Defpoints, providing clean vector paths optimized for CNC processing. All measurements are specified in inches and validated against manufacturer specifications. The 1.77-inch corner radius requires appropriate bit selection - we recommend 1/2-inch diameter or smaller bits for accurate perimeter cutting, with 3/8-inch ball nose tools preferred for polished edge applications. The relatively generous corner radius allows faster cutting speeds compared to tight-radius designs while maintaining structural strength and aesthetic appeal. Program tool offset compensation based on your specific bit diameter and target reveal dimension - this is critical for achieving the precise reveal measurement your installation requires. The single-bowl configuration eliminates complex internal geometries, enabling straightforward toolpath programming with continuous perimeter cutting and no bridge sections or internal islands. For CNC routers, ensure adequate material support during cutting using vacuum hold-down systems or support rails to prevent vibration across the sink's substantial perimeter dimension. Feed rates can be optimized for your specific material type - granite and quartzite benefit from conservative feeds and multiple depth passes, while quartz cuts efficiently with proper diamond tooling. This template excels for waterjet cutting applications where corner radius presents no limitations and cutting speed is maximized. Consider adding corner lead-ins for waterjet to prevent witness marks at the start point. The moderate size makes this template suitable for nested cutting layouts, allowing efficient material usage when fabricating multiple projects from a single slab.
Material Compatibility
The Alpha U271-25 template is engineered for compatibility with all professional countertop substrates when paired with appropriate variant selection based on material characteristics. For 3cm granite and quartzite installations, both 1/8-inch and 1/2-inch reveal variants deliver excellent structural performance - selection depends on aesthetic preferences, edge profile complexity, and client requirements. Natural stone's compressive strength easily supports this cutout dimension without structural concerns when properly installed with appropriate adhesive systems. Quartz and engineered stone installations should favor the 1/2-inch overhang variant for maximum edge support, as these materials can develop microcracks around large cutout perimeters without adequate overhang protection. The generous overhang distributes stress across a larger support area and provides a safety margin during installation and long-term use. Some professional fabricators recommend laminating quartz to 4cm thickness for sinks of this size, providing additional structural safety margin, though 3cm works well with proper overhang. Marble countertops benefit from the 1/2-inch overhang to protect softer stone edges from chipping, moisture damage, and impact from dropped items. The 27-inch sink dimension works well in island installations where slab size accommodates the cutout while maintaining adequate edge distance on all sides. For 2cm material thickness, always use the 1/2-inch overhang variant minimum, though we strongly recommend laminating to 3cm thickness for better long-term structural performance with this cutout size. Solid surface materials work well with this template using moderate reveals and manufacturer-specified adhesive systems rated for undermount applications. The premium satin stainless steel finish complements all stone colors from bright whites to deep blacks, warm beiges to cool grays, and everything between. This size cutout is not appropriate for laminate countertops in any configuration.
Where to Buy
The Alpha International U271-25 is available through professional plumbing distributors, kitchen and bath showrooms, and specialty online retailers focusing on quality stainless steel sinks. Typical retail pricing ranges from $160-220 depending on supplier, market conditions, and volume purchase agreements. Professional stone fabricators often access preferential pricing through established distributor relationships and volume purchase programs. When ordering, verify the exact model number U271-25 to ensure correct sizing, as Alpha manufactures several similar 27-30 inch models with different bowl dimensions and configurations. The sink ships complete with stainless steel mounting clips, installation template, and product documentation, though professional fabricators rely on our precision DXF files for CNC cutting accuracy superior to paper templates. Check with local plumbing supply wholesalers for immediate availability, or order through online specialty retailers for competitive pricing with standard shipping timelines. Lead times may extend during peak construction seasons, so verify availability when committing to project schedules. Consider ordering complementary accessories including custom-fitted bottom grids to protect the sink surface, cutting boards sized for the bowl opening, and matching colander inserts for enhanced functionality. Some suppliers offer package deals including sink, accessories, and compatible faucets at bundled pricing.