Alpha International G3018S Granite Composite Single Bowl Undermount Cutout
Description
The Alpha International G3018S is a premium 30-inch granite composite single bowl undermount sink designed for modern kitchen installations. This production-ready DXF template provides fabricators with four essential cutting variants to accommodate different installation methods and reveal preferences. With overall dimensions of 30" x 18" and a generous 9.5" bowl depth, this sink offers exceptional capacity while fitting standard 33-inch base cabinets. The granite composite material combines natural stone aesthetics with superior durability and stain resistance.
Dimensions
- Overall Width
- 30"
- Overall Depth
- 18"
- Bowl Width
- 28"
- Bowl Depth
- 16"
- Corner Radius
- 0.3937"
Specifications
- Manufacturer
- Alpha International
- Model Number
- G3018S
- Installation Type
- Undermount
- Bowl Configuration
- Single
- Material
- Granite-Composite
- Min. Cabinet Width
- 33"
- Downloads
- 0
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The Alpha International G3018S is a premium 30-inch granite composite single bowl undermount sink designed for modern kitchen installations. This production-ready DXF template provides fabricators with four essential cutting variants to accommodate different installation methods and reveal preferences. With overall dimensions of 30" x 18" and a generous 9.5" bowl depth, this sink offers exceptional capacity while fitting standard 33-inch base cabinets. The granite composite material combines natural stone aesthetics with superior durability and stain resistance.
Installation Overview
Professional installation of the G3018S requires careful template selection based on your desired reveal and mounting method. The no-reveal variant creates a flush edge where the bowl meets the countertop cutout exactly, providing maximum sink stability and support. The 1/8-inch reveal option is the most popular choice among fabricators, offering a small visible rim that helps protect the cut edge while maintaining a clean appearance. For installations requiring additional countertop support over the sink rim, the 1/2-inch overhang variant provides extra material coverage. The drop-in variant accommodates top-mount installations where the sink lip rests on the counter surface. Each variant has been precision-engineered to ensure proper fit and professional results. When cutting granite, quartz, or marble for this sink, always verify your material thickness and ensure adequate support for undermount clips. The 0.39-inch corner radius allows for smooth CNC toolpath generation without sharp transitions that could stress natural stone.
CNC Cutting Notes
CNC fabricators will appreciate the clean geometry of this template, with well-defined arcs and straight segments that minimize tool changes. When programming your CNC router, use a 3/8-inch or smaller diameter bit to navigate the corner radius accurately. Set your feed rate appropriately for the material—slower for natural granite and marble, faster for engineered quartz. The template includes four complete cutout profiles optimized for different installation scenarios. Always run a simulation before cutting expensive slabs, checking for proper tool clearance and verifying that the cutout dimensions match your specific installation requirements. Consider adding a small finishing pass for ultra-smooth edges on visible portions of the cutout.
Material Compatibility
This sink template works with all major countertop materials including granite, quartz, quartzite, marble, and solid surface. Granite composite sinks pair exceptionally well with natural stone countertops, as both materials share similar thermal expansion properties and durability characteristics. The sink's integrated color options complement a wide range of stone colors and patterns. When installing in quartz, the non-porous granite composite sink material creates a hygienic pairing resistant to bacteria and staining. For marble installations, the sink's chemical-resistant surface won't be damaged by acidic substances that might etch the stone. The undermount style maximizes usable counter space and creates seamless transitions for easy cleanup, making it ideal for busy kitchen environments.
Where to Buy
Alpha International sinks are available through kitchen and bath distributors, specialty plumbing showrooms, and fabricator supply networks. Check with your local stone supplier or visit sinks.org for Alpha International dealers. The G3018S typically retails between $350-500 depending on color and finish options. Many fabricators maintain relationships with Alpha distributors for competitive trade pricing on premium sink products.