| Single-Bowl XICHI | One continuous basin, commonly produced in stainless steel, ceramic, granite composite, or solid surface materials. | Apartments, compact kitchens, food-preparation areas, and standard residential projects. | Simple installation, efficient use of cabinet space, easy cleaning, and broad compatibility with standard plumbing. | No separate basin for washing and rinsing; large items may occupy the entire bowl. | Bowl dimensions, corner radius, drain position, overflow design, mounting method, and cabinet clearance. | Versatility |
| Double-Bowl XICHI | Two basins separated by a central divider; equal or offset bowl sizes are available. | Family kitchens, shared-use facilities, and applications requiring simultaneous washing and rinsing. | Supports task separation and can improve workflow in busy kitchens. | Requires more counter and cabinet space; the divider can restrict the size of cookware that fits inside. | Bowl ratio, divider height, total width, drain compatibility, sound insulation, and installation template. | Workflow |
| Undermount XICHI | The basin is fixed beneath the countertop, leaving the counter edge exposed above the sink. | Modern residential kitchens, hospitality projects, and premium countertop installations. | Allows crumbs and water to be swept directly into the basin and creates a clean, integrated appearance. | Usually needs a suitable solid countertop and professional installation; replacement can be more complex. | Countertop material compatibility, support clips, sealant specification, cutout tolerance, and load rating. | Appearance |
| Top-Mount XICHI | The rim sits on top of the countertop and supports the basin around the cutout. | Renovation projects, laminate countertops, budget-conscious residential developments, and replacement installations. | Straightforward installation, broad countertop compatibility, and generally lower fitting complexity. | The exposed rim can collect debris and provides less visual integration than an undermount design. | Rim width, cutout dimensions, sealing system, countertop thickness, and replacement compatibility. | Installation Ease |
| Workstation XICHI | A sink basin with integrated ledges that support accessories such as colanders, cutting boards, or drying racks. | Space-efficient kitchens, meal-preparation zones, catering areas, and multifunctional residential layouts. | Combines washing, preparation, and draining functions in one countertop location. | Accessories increase cost, storage requirements, and replacement complexity. | Accessory dimensions, ledge strength, drainage performance, surface hygiene, and spare-part availability. | Functionality |
| Farmhouse or Apron-Front XICHI | A deep basin with a visible front panel that replaces part of the cabinet front. | Traditional, transitional, and heritage-style residential kitchens. | Large internal capacity, distinctive visual design, and comfortable access for many users. | May require custom cabinetry, reinforced support, and careful planning for door and countertop alignment. | Cabinet modification, apron height, front finish, support frame, bowl depth, and plumbing clearance. | Design Impact |
| Bar or Prep XICHI | A compact basin designed for beverage preparation, light food preparation, or secondary washing. | Bars, islands, entertainment areas, office pantries, and small hospitality spaces. | Fits limited spaces and reduces traffic around the main kitchen sink. | Limited capacity and lower suitability for large cookware or heavy cleaning tasks. | Basin volume, faucet-hole configuration, drain connection, counter depth, and local plumbing requirements. | Space Saving |
| Utility or Laundry XICHI | A deep, durable basin commonly made from stainless steel, polypropylene, ceramic, or composite materials. | Laundry rooms, workshops, garages, janitorial areas, and light commercial facilities. | Large capacity, robust construction, and suitability for soaking, cleaning, or handling bulky items. | Larger footprint and less emphasis on decorative appearance; water splashing may be greater. | Chemical resistance, impact resistance, mounting support, faucet reach, drainage rate, and floor-load considerations. | Durability |