Understanding standard cabinet dimensions in metric units is essential for both DIY enthusiasts and professional designers. Whether you are planning a kitchen remodel, a bathroom vanity, or a built-in wardrobe, precise measurements ensure a perfect fit and optimal functionality. This guide breaks down the standard metric dimensions for various cabinet types, helping you navigate design plans and purchase specifications with confidence.
Base Cabinet Dimensions
The base cabinet serves as the foundational unit in any modular kitchen or storage system. The standard depth for a base cabinet is typically 600 millimeters, providing ample space for pantry items and heavy appliances. The height is usually 850 millimeters, which, when paired with a standard countertop thickness of 25 or 30 millimeters, results in a comfortable working height of approximately 900 millimeters from the floor. The width varies to suit specific spatial needs, with common options being 300, 400, 600, and 800 millimeters.
Tall and Narrow Applications
In settings where floor space is at a premium, such as in compact galley kitchens or narrow utility rooms, you will encounter more restrictive standard cabinet dimensions. A common solution is the use of a 300-millimeter wide by 850-millimeter tall base cabinet. These slim units are ideal for housing small appliances or acting as high-access storage. While the depth remains largely consistent at 600 millimeters to align with the countertop layout, the reduced width allows for greater flexibility in tight spaces without disrupting the overall workflow.

Wall Cabinet Specifications
Wall cabinets are designed to maximize vertical storage while keeping the workspace clear of obstructions. The standard depth for wall cabinets is typically between 300 and 350 millimeters, ensuring they do not protrude into the room and interfere with movement. This shallower depth perfectly complements the 600-millimeter deep base cabinets below. In terms of height, these cabinets are usually 720 or 800 millimeters tall, and they are available in a wide array of widths, from 100 millimeters for filler spaces to 600 millimeters for primary storage spans.
Overhead and High Reach
For areas that require access to infrequently used items, ceiling-height cabinets are a practical solution. These tall units often come in standard heights of 1800 or 2000 millimeters, bridging the gap between the wall cabinet and the ceiling. To maintain ergonomic access, it is recommended that the bottom of these high cabinets be placed around 1400 millimeters from the floor. This positioning allows for ventilation and cleaning while ensuring that the storage remains visible and reachable, typically with the assistance of a step stool.
Specialty and Functional Units
Beyond the basic storage boxes, standard cabinet dimensions extend to specialized units that serve specific functions. Tall trash cabinets, for example, are designed to hide bin systems neatly; these usually have a footprint of 300 by 300 millimeters but can extend to 600 millimeters in height to accommodate larger waste containers. Similarly, appliance garages, which conceal refrigerators or dishwashers, adhere to strict metric measurements, often matching the specific dimensions of the appliance while integrating seamlessly into the standard 600-millimeter base grid.

Drawer and Door Considerations
While the outer dimensions define the cabinet's place in the room, the internal organization is dictated by the drawers and doors. Standard drawer heights typically range from 100 millimeters for shallow utensil holders to 150 or 200 millimeters for mixing and food preparation drawers. The face frame or slab door style will influence the final cabinet width; for instance, a 400-millimeter wide cabinet might accommodate a 350-millimeter drawer box with a 25-millimeter frame, or a 370-millimeter door if using an overlay style. Precision in these measurements is vital to prevent binding and ensure smooth operation.
Planning and Integration
When translating these standard cabinet dimensions into a real-world layout, tolerance is a critical factor. It is wise to account for wall irregularities by allowing 5 to 10 millimeters of adjustment on either side of the cabinet unit. Furthermore, integrating these cabinets with other elements requires attention to detail; for example, ensuring that an oven flush inset leaves a 5-millimeter gap on all sides, or that a refrigerator side panel matches the 600-millimeter module to maintain a cohesive aesthetic. This meticulous approach to measurement transforms a collection of boxes into a harmonious and efficient storage system.