When it comes to renovating your kitchen or bathroom, measuring your cabinets correctly is a crucial first step. Accurate measurements ensure you purchase the right replacement cabinets or plan your layout effectively. This guide will walk you through the process of how to measure cabinet size like a pro.
Understanding Cabinet Dimensions
Cabinets are typically measured in three dimensions: width, height, and depth. These measurements are usually expressed in the following format: Width x Height x Depth. Understanding these dimensions will help you determine the size of the cabinet you need.
- Width (W): The horizontal measurement from left to right, including the frame.
- Height (H): The vertical measurement from top to bottom, including the crown molding if present.
- Depth (D): The horizontal measurement from front to back, excluding the frame but including any toe kicks.
Measuring Existing Cabinets
If you're replacing existing cabinets, it's essential to measure them accurately to ensure a perfect fit. Here's a step-by-step process:

Step 1: Clear the Area
Remove any contents from the cabinets and clear the area around them. This will give you enough space to work and ensure accurate measurements.
Step 2: Measure Width
Measure the width of the cabinet from the left side of the frame to the right side, including the frame. Make sure to measure at the top, middle, and bottom to account for any unevenness. Use the smallest measurement for the most accurate fit.
Step 3: Measure Height
Measure the height of the cabinet from the top of the crown molding (if present) to the bottom of the toe kick. Again, measure at multiple points to ensure accuracy.

Step 4: Measure Depth
Measure the depth of the cabinet from the front of the cabinet (excluding the door or drawer face) to the back of the cabinet, including any toe kicks. Make sure to measure at the top, middle, and bottom to account for any unevenness.
Measuring for New Cabinets
If you're installing new cabinets, you'll need to measure the space where they will go. Here's how:
Step 1: Determine the Wall Dimensions
Measure the width and height of the wall where the cabinets will be installed. Make sure to account for any obstacles like outlets, windows, or pipes.

Step 2: Plan Your Layout
Using the wall dimensions and the standard cabinet sizes (typically 9", 12", 15", 18", 21", 24", 30", 36", and 48"), plan your cabinet layout. Consider the placement of appliances, sinks, and other fixtures.
Step 3: Measure for Height
Measure the height of the wall where the cabinets will be installed. This will determine the maximum height of your cabinets. Standard cabinet heights are 30", 36", 42", and 90" (for wall cabinets).
Step 4: Measure for Width and Depth
Measure the width and depth of the space where the base cabinets will go. For wall cabinets, measure the depth of the space from the front of the wall to the back, excluding any countertops or backsplashes.
Tips for Accurate Measurements
Here are some tips to help you get the most accurate measurements:
- Use a tape measure with a level to ensure accurate measurements.
- Measure in inches and round to the nearest 1/8" or 1/4" for the most accurate results.
- Measure multiple times to ensure consistency and accuracy.
- Consider hiring a professional if you're unsure about any measurements.
By following these steps and tips, you'll be well on your way to measuring your cabinet size accurately. This will ensure a perfect fit and a successful cabinet installation or replacement. Happy measuring!





















