Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout
Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout
Description
The Alpha International U231-25 is a versatile 23-inch single bowl undermount sink designed for standard residential and light commercial applications. This mid-size configuration balances generous bowl capacity with reasonable countertop space requirements, making it suitable for galley kitchens, apartment installations, and traditional layouts. Our DXF template offers four precision cutout variants for professional fabricators working with granite, quartz, marble, and solid surface materials. The 18-gauge commercial-grade 304 stainless steel construction provides long-term durability, while the premium satin finish resists water spotting and fingerprints. Round corners with 1.063-inch radius facilitate easy cleaning and add visual refinement.
Dimensions
- Overall Width
- 23"
- Overall Depth
- 18"
- Bowl Width
- 21"
- Bowl Depth
- 16"
- Corner Radius
- 1.063"
Specifications
- Manufacturer
- Alpha International
- Model Number
- U231-25
- Installation Type
- Undermount
- Bowl Configuration
- Single
- Material
- Stainless-Steel
- Min. Cabinet Width
- 26"
- Downloads
- 0
Related Templates
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Answer summary
What is the Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout DXF template for?
Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout is a sink cutouts DXF template for countertop fabrication. Use it only after matching the manufacturer, model, dimensions, variant, and shop workflow to the actual job.
Risk check: Similar-looking products can use different cutout geometry. Confirm the official spec, shop tolerance, material behavior, and CNC output before production.
Next step: Run a DXF check, compare related templates, and keep the current manufacturer spec with the job packet.
Template decision guide
Should you use the Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout DXF template?
Use the template page to shortlist a production file, then verify the exact model, variant, and machine workflow before cutting.
Best fit
Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout is most useful when the product, manufacturer, model, install type, and variant match the job you are fabricating.
What to compare
Compare model number, dimensions, reveal or overhang, bowl or appliance geometry, material thickness, and CNC output requirements.
Risk check
Do not use a similar-looking template as a final production file. Small changes in flange, radius, trim, or reveal can cause a failed cutout.
Evidence to verify
Check the current manufacturer spec, field measurement, template preview, DXF layers, and a shop-approved tolerance before production.
Page-specific notes
Page-specific notes for Alpha International U231-25 Stainless Steel Single Bowl Undermount Cutout
These notes are assembled from this exact template record, its category, available variants, and nearby template comparisons. They are meant to make the page more useful than a generic download page.
Exact record SlabWise is using
Alpha International U231-25 is filed under Sink Cutouts. The normalized record lists width 23", depth 18", bowl width 21", bowl depth 16", corner radius 1.063", so the safest use is as a production starting point that still gets checked against the current job packet.
Variant choice
This page exposes 4 variants: No Reveal (Flush), 1/8" Reveal, 1/2" Overhang, Drop-in. Pick the variant that matches reveal, overhang, install style, and shop standard before exporting to CAM.
Category-specific production check
Sink Cutouts files should be checked for fit against material thickness, edge treatment, sink or appliance clearance, CNC layer expectations, and the shop's preferred tolerance before cutting customer material.
Closest comparisons
Before choosing this file, compare it with Alpha International AS1813 Stainless Steel Single Bowl Undermount Cutout, Alpha International AS2114 Stainless Steel Single Bowl Undermount Cutout, Alpha International G2418 Granite Composite Single Bowl Undermount Cutout to catch small model, radius, flange, or layout differences that can change the final cut.
Evidence already attached
This page has extra enrichment for installation overview, CNC cutting notes, material compatibility, buying context. Use those notes as decision support, then keep the official product spec with the job.
The Alpha International U231-25 is a versatile 23-inch single bowl undermount sink designed for standard residential and light commercial applications. This mid-size configuration balances generous bowl capacity with reasonable countertop space requirements, making it suitable for galley kitchens, apartment installations, and traditional layouts. Our DXF template offers four precision cutout variants for professional fabricators working with granite, quartz, marble, and solid surface materials. The 18-gauge commercial-grade 304 stainless steel construction provides long-term durability, while the premium satin finish resists water spotting and fingerprints. Round corners with 1.063-inch radius facilitate easy cleaning and add visual refinement.
Installation Overview
The Alpha U231-25 fits standard 26-inch minimum cabinet widths, making it compatible with most base cabinet configurations. The template provides four installation options: no reveal (21x16-inch cutout for maximum bowl exposure), 1/8-inch reveal (20.75x15.75-inch cutout for balanced aesthetics and support), 1/2-inch overhang (20x15-inch cutout for maximum stone support), and drop-in variant (23x18-inch cutout for top-mount installation). For professional stone fabrication, the 1/8-inch reveal represents the optimal choice for 3cm granite and quartz, providing clean visual lines while maintaining structural integrity. The 9-inch bowl depth accommodates large cookware and commercial spray faucets. Stainless steel mounting clips attach directly to the sink's exterior channel, though many fabricators prefer two-part epoxy systems for superior long-term bonding. The undercoated insulation with rubber padding significantly reduces operational noise, an important consideration for open-concept residential spaces. The 3.5-inch drain opening works with all standard disposal units and basket strainers. Round corners improve sanitation and reduce food particle accumulation compared to sharp radius designs.
CNC Cutting Notes
This template delivers production-ready geometry extracted from manufacturer DXF files with confirmed dimensional accuracy. The file structure is optimized for CNC processing with minimal entity count and clean vector paths on standard layers. All measurements are in inches, verified against manufacturer specifications. The 1.063-inch corner radius requires appropriate tool selection - we recommend 1/2-inch diameter or smaller bits for accurate reproduction. Consider using a 3/8-inch ball nose for the smoothest corner finish on polished edges. The single-bowl configuration eliminates complex internal geometries, allowing straightforward toolpath programming with continuous perimeter cutting. Program appropriate tool offset compensation based on your specific bit diameter and desired reveal dimension. For waterjet cutting, this template works equally well, though you may want to add corner lead-ins to prevent witness marks at the start point. The medium size makes this template ideal for nested layouts, allowing efficient material usage when cutting multiple sinks from a single slab.
Material Compatibility
This undermount template accommodates all common countertop substrates with appropriate variant selection. For 3cm granite and quartzite, use the 1/8-inch or 1/2-inch reveal variants depending on desired aesthetics and edge exposure preferences. The natural strength of granite supports minimal reveals without structural concerns. Quartz and engineered stone installations should favor the 1/2-inch overhang variant, as these materials can be more susceptible to edge chipping without adequate support. The added overhang distributes stress and reduces the risk of micro-fractures during sink installation and use. Marble countertops benefit from maximum overhang to protect the more delicate stone edges from impact damage and moisture exposure. For 2cm materials, always use the 1/2-inch overhang or consider laminating to 3cm thickness for better long-term performance. Solid surface materials work well with this template using moderate reveals. The stainless steel finish complements both light and dark stone colors, from Carrara and Calacatta patterns to absolute black and dark granites. Laminate countertops should only use the drop-in variant.
Where to Buy
The Alpha International U231-25 is available through plumbing wholesalers, kitchen and bath showrooms, and online retailers specializing in stainless steel sinks. Typical retail pricing ranges from $140-180 depending on supplier and quantity discounts for professional fabricators. When ordering, verify the exact model number U231-25 to ensure proper sizing, as Alpha offers similar models with different dimensions. The sink ships complete with stainless steel mounting clips and a paper template, though professional installers prefer our precision DXF files for CNC accuracy. Volume pricing may be available for fabrication shops and contractors through distributor networks. Check local plumbing supply houses for immediate availability, or order direct from online retailers for competitive pricing with standard shipping timeframes.