Karran QU-720-BR Sink For Double-Bowl Kitchens

Karran QU-720-BR sink is a quartz double 50/50 bowl undermount sink that provides two equal-depth bowls for parallel kitchen tasks, which helps installers and users organize prep and cleanup in a standard 33-1/2 inch wide opening. External bowl dimensions of 33-1/2 inches by 20-1/2 inches by 9 inches define the footprint and depth, so the cabinet and stone fabricator can plan cutout size, overhang, and under-sink clearance with confidence. Internal bowl dimensions of 14-3/8 inches by 17-1/4 inches by 9 inches and 14-3/8 inches by 16 inches by 9 inches set the working space in each bowl, guiding layout for faucets, drains, and adjacent workspace. The sink bowl surface has a matte finish, which affects appearance under lighting and can influence how water and marks present during everyday kitchen use.

Quartz Undermount Features That Support Fabrication

• Manufactured from 80 percent crushed quartz and 20 percent acrylic resin, this sink combines mineral content with a binding matrix, which matters to stone shops when routing cutouts and bonding the 1-1/4 inch by 3/4 inch machined resin matrix rim to solid surface or stone.
• The 1-1/4 inch by 3/4 inch machined, resin matrix rim provides a defined, consistent edge profile, giving fabricators a predictable bearing surface for undermount installation and helping achieve clean reveals and uniform overhangs along the sink perimeter.
• Waste openings sized at 3-1/2 inches match standard kitchen drain fittings, so installers can plan drain assemblies and connections within typical plumbing layouts without reworking rough-in positions designed around this common opening size.
• The sink bowl surface with a matte finish influences how the brown quartz color reads against various countertop materials, allowing designers and installers to coordinate finishes while anticipating how reflections and minor surface marks present over time.

Undermount Installation And Countertop Fit Details

Undermount installation required means the Karran QU-720-BR sink is designed to be fixed beneath the countertop, so fabricators cut an accurate opening in stone while supporting the 1-1/4 inch by 3/4 inch machined rim for structural stability. The sink may not be top mounted, which keeps the installation approach focused on undermount hardware and adhesive methods suited to stone. This sink may be undermounted to all stone products, so granite, quartz, or similar slabs can be fabricated around the defined rim geometry. A 1/8 inch overhang is recommended, but flush installation is also possible, allowing fabricators to choose between a slight reveal over the bowl or a level transition, depending on design plans and edge treatments.

Quartz Double-Bowl Sink Use In New Countertops

Where This Brown Quartz Sink Is Installed

This quartz brown double 50/50 bowl undermount sink is intended for new countertops, so it is used when fabricators are cutting fresh stone rather than reworking an existing cutout. The requirement that it can only be installed in new countertops, not existing countertops with existing sink cutout, directs it to remodels or new builds that are receiving new stone, which lets installers align bowl placement, faucet holes, and waste openings at the same time. External dimensions of 33-1/2 inches by 20-1/2 inches by 9 inches position it as a common kitchen size, so it fits typical base cabinet widths when planning cabinet runs and appliance clearances. Internal bowl dimensions of 14-3/8 inches by 17-1/4 inches by 9 inches and 14-3/8 inches by 16 inches by 9 inches give users two functional spaces for washing and rinsing, which supports task separation when laying out dish racks, disposers, and filtration taps around the sink area.

Details That Support Accurate Fabrication Results

Manufacture from 80 percent crushed quartz and 20 percent acrylic resin sets a consistent material density, which matters when routing the stone cutout and bonding the machined resin matrix rim so the sink and countertop behave predictably under normal kitchen loads. The 1-1/4 inch by 3/4 inch machined, resin matrix rim establishes a uniform contact band, helping fabricators apply adhesive and support blocks evenly so the undermount joint remains level along all sides. All external dimensions are approximate to 1/4 inch, which guides shops to treat the listed 33-1/2 inch by 20-1/2 inch by 9 inch measurements as fabrication references when laying out templates and CNC toolpaths. Digital templates for CNC machines are available at www.karran.com, giving CNC-equipped shops reference geometry so sink cutouts and overhangs repeat accurately across multiple jobs using this same brown quartz model. Waste openings of 3-1/2 inches position the drains for standard strainers or disposers, so plumbers can route traps and connections in line with typical rough-in expectations around a double-bowl undermount configuration.

Common Questions About Karran QU-720-BR Sink

Select This Quartz Sink For New Stone Projects

The Karran QU-720-BR sink pairs a 33-1/2 inch by 20-1/2 inch by 9 inch undermount format with brown quartz construction, giving fabricators a defined footprint for new stone installations. Its 80 percent crushed quartz and 20 percent acrylic resin composition, machined 1-1/4 inch by 3/4 inch resin matrix rim, and 3-1/2 inch waste openings align with standard shop tooling and plumbing expectations. When a double 50/50 bowl layout, matte surface, and new-countertop-only installation match the kitchen plan, this sink provides the dimensional and material details needed to proceed confidently with layout and fabrication.