Wholesale Corner Bathroom Sink Cabinet
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Wholesale Corner Bathroom Sink Cabinet
Designed for tight floor plans, this cabinet fits into a 90‑degree corner while providing a full‑depth vanity top and storage volume comparable to a standard rectangular unit.
Design and Spatial Efficiency
The cabinet utilizes a triangular carcass with a 22‑inch deep leg on each wall and a 16‑inch deep front panel, resulting in a usable interior width of approximately 24 inches measured along the bisector.
Load capacity is rated for 150 lb shear load on concealed brackets, allowing secure attachment to studs without visible fasteners.
Material Specification
Three material configurations are offered to match different budget and performance requirements. Typical values are shown below.
| Option | Core Material | Surface Finish | Typical Thickness (mm) | Water Absorption (% after 24h) |
|---|---|---|---|---|
| Standard | Moisture‑resistant particleboard (MR‑PB) | Melamine laminate, 0.3 mm | 18 | ≤5 |
| Premium | Marine‑grade plywood (5‑ply, BS 1088) | UV‑cured acrylic coating, 0.4 mm | 19 | ≤2 |
| Industrial | Stainless steel frame (304) with PVC‑coated panels | PVC film, 0.5 mm | 20 (frame) + 12 (panel) | 0 (non‑absorbent) |
Dimensional Range and Customization
Standard corner cabinets are available in three nominal sizes, measured from the wall to the outer edge of the front panel.
- Small: 24 in × 24 in × 30 in (W × D × H)
- Medium: 28 in × 28 in × 32 in
- Large: 32 in × 32 in × 36 in
Custom adjustments can be made in 2‑inch increments for width and depth, and height can be altered by ±4 inches to accommodate varying countertop thicknesses.
Load Capacity and Moisture Resistance
The carcass is engineered to support a static load of up to 250 lb distributed across the countertop surface, with a safety factor of 1.5 based on material yield strength.
Edge sealing uses a polyurethane bead with a shore hardness of 85A, providing a water‑vapor transmission rate (WVTR) below 0.05 g/(m²·day) for the laminate options.
Applications in Commercial Settings
In hotels and multifamily bathrooms, corner cabinets reclaim floor area that would otherwise be lost to traffic flow, allowing designers to increase fixture spacing by up to 3 inches per unit.
The modular design enables rapid installation in renovation projects, reducing labor time by approximately 20 % compared with traditional built‑in vanities.
Quality Control and Testing
Each batch undergoes dimensional inspection using a coordinate measuring machine (CMM) with a tolerance of ±0.5 mm on critical interfaces.
Moisture resistance is validated by a 48‑hour cyclic humidity test per ASTM D2247, with acceptance criteria of no delamination or swelling exceeding 0.2 mm.
Packaging and Logistics
Cabinets are shipped flat‑packed in double‑wall corrugated cartons, each corner reinforced with 200 psi burst strength board.
Internal protection includes die‑cut foam inserts that limit movement to less than 2 mm during transit, and a humidity‑absorbing sachet maintains internal RH below 50 %.
Standard pallet configuration holds 20 units, facilitating full‑truckload (FTL) shipments with a typical lead time of 3‑4 weeks from order confirmation.
Frequently Asked Questions
Can dimensions be customized?
Yes. Width and depth can be adjusted in 2‑inch increments, and height can be altered by ±4 inches to match specific countertop thicknesses.
What information is required before quotation?
We need the desired nominal size, material option, countertop overhang, and any special hardware requirements (e.g., soft‑close hinges).
What materials are available?
Three standard options: moisture‑resistant particleboard with melamine, marine‑grade plywood with acrylic coating, and stainless‑steel frame with PVC‑coated panels.
How is quality inspected?
Every unit is checked for dimensional accuracy (±0.5 mm), surface adhesion (cross‑hatch test), and moisture resistance (48‑hour ASTM D2247 cycle).
What packaging methods are available?
Standard flat‑pack in double‑wall cartons with foam inserts; optional wooden crates for overseas shipments.
How are export shipments protected?
Cartons are placed on heat‑treated pallets, wrapped in stretch film, and sealed with moisture‑barrier bags to maintain RH below 50 %.
What is the typical production lead time?
3‑4 weeks for standard sizes; 5‑6 weeks for custom dimensions.
How are samples arranged?
Sample units can be shipped via express courier; costs are credited against the first order.
Get a Quote
To discuss your project requirements, share the nominal size, material preference, and any custom features. Our technical team will return a detailed quotation within one business day.
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