Selecting the correct size for cabinet doors is an essential step in any cabinetry project. Whether you are constructing new cabinets or updating existing ones, ensuring that the doors fit perfectly requires careful measurement and consideration. The right-sized door not only enhances the aesthetic of the kitchen or living space but also ensures functionality and ease of use. This guide will provide you with the fundamental steps and tips for how to size cabinet doors, taking into account factors such as overlay style, door gaps, and hinge placement.

The Importance of Properly Sizing Cabinet Doors
Properly sizing cabinet doors is crucial for several reasons. First and foremost, it ensures that the doors open and close smoothly without any obstructions, which maintains the functionality of the cabinetry. If doors are improperly sized, they may rub against adjacent doors or frames, leading to wear over time and potentially damaging both the doors and hinges.
Aesthetically, correctly sized doors contribute to a polished and professional look, ensuring that the overall design remains visually pleasing. Additionally, precise measurements help avoid gaps or overlaps that can disrupt the alignment and appearance of the cabinet fronts. Finally, well-sized cabinet doors can enhance the overall value of a home, as potential buyers will appreciate the attention to detail and the quality craftsmanship in the cabinetry.
Understanding Cabinet Door Types
To properly size cabinet doors, it’s essential to first understand the different types of doors available and how they might influence your measurements. The two primary styles are overlay and inset doors. Overlay doors are the most common, designed to cover the cabinet frame partially or completely. Within this category, you can find full overlay doors that provide a sleek and modern look by covering most, if not all, of the cabinet frame, and partial overlay doors, which leave a portion of the frame visible between doors.

Inset doors, on the other hand, fit flush within the cabinet frame, offering a more traditional, framed look. Each style has its own aesthetic and functional considerations; for example, inset doors require more precise fitting to ensure they sit flush with the frame without gaps. Additionally, considerations such as hinge type, the thickness of the door material, and decorative molding styles can further impact sizing and design decisions. Understanding these options will guide you in selecting the appropriate style that suits your needs and personal preferences, ensuring both form and function in your cabinetry project.
10 Methods How to Size Cabinet Doors
1. Measuring the Cabinet Opening
The most fundamental step in sizing cabinet doors is accurately measuring the cabinet opening. Start by measuring the width and height of each opening with a tape measure. Be sure to take these measurements from inside the cabinet frame, as this is where the door will sit. Take three measurements for both height and width—one at the top, one in the middle, and one at the bottom.
Cabinets are not always perfectly square, so this ensures you capture any discrepancies. Always use the largest measurement when sizing the door. Knowing the exact dimensions of the cabinet opening is critical for ensuring that your new doors will fit precisely without gaps.
2. Adding the Overlay
If your cabinet doors are overlay-style, meaning they extend beyond the cabinet opening and sit on top of the frame, you will need to account for the desired overlay in your sizing. The standard overlay for cabinet doors is typically ½ inch to 1 inch on each side, but it can vary depending on the design.

To calculate the size of the door, add the overlay to both the height and width of the opening. For example, if your cabinet opening is 24 inches wide and you want a ½-inch overlay, your door will need to be 25 inches wide. This method ensures that the door covers the cabinet frame evenly, creating a neat, uniform appearance.
3. Accounting for Inset Doors
Inset doors sit flush with the cabinet frame rather than overlapping it. To size inset doors correctly, measure the cabinet opening as usual, but do not add any extra dimensions for an overlay. Instead, ensure that the door dimensions match the exact size of the opening, minus a small clearance (usually ⅛ inch) on all sides to allow the door to open and close smoothly without binding.
Precision is especially important with inset doors because any misalignment will be noticeable. Using high-quality hinges and ensuring accurate door sizing will give your cabinets a sleek, custom-built look.
4. Considering the Reveal
The reveal refers to the portion of the cabinet frame that remains visible around the perimeter of the door. For a partial overlay door, where part of the frame is exposed, you’ll need to subtract the reveal from the overall door size.
Typically, the reveal is ¼ inch on each side, but this can vary based on design preferences. If your cabinet opening is 30 inches wide and you want a ¼-inch reveal on both sides, you would subtract ½ inch from the total width, making the door 29½ inches wide. Keeping the reveal consistent around all cabinet doors ensures a balanced and polished look.
5. Sizing Double Doors
If you have a wide cabinet opening that requires double doors, you’ll need to adjust your measurements to accommodate two doors. First, measure the total width of the cabinet opening and divide it by two to get the size of each door.
Then, add the desired overlay to each door. If you want a ½-inch overlay, remember to include it on the outer edge of each door but leave space between the two doors in the middle—typically about ⅛ to ¼ inch for clearance. This method allows both doors to swing open without rubbing against each other and ensures they meet evenly when closed.
6. Using Full-Overlay Hinges
If you’re using full-overlay hinges, which allow the door to completely cover the cabinet opening and frame, it’s crucial to size the doors to cover the entire cabinet face. Full-overlay doors should have an overlay that matches the width of the cabinet frame or close to it, typically around 1 to 1¼ inches on each side.
Be sure to check the specifications of your hinges to ensure they allow for the correct overlay and adjust your door measurements accordingly. This method results in a modern, seamless look where the cabinet doors create a flush, continuous surface across the cabinetry.

7. Adjusting for Hinges and Hardware
The type of hinges and hardware you choose for your cabinet doors can influence their size. For example, European-style concealed hinges often require a specific overlay or inset adjustment depending on the cabinet type. Always check the hinge manufacturer’s guidelines to ensure you’re sizing the doors correctly. Additionally, the placement of handles or knobs may require you to leave extra room for proper installation. Accounting for the hardware early in the sizing process ensures that the doors will function correctly and that the aesthetic remains consistent with the overall design.
8. Allowing for Wood Expansion and Contraction
Wood is a natural material that expands and contracts with changes in humidity and temperature. If you’re working with solid wood cabinet doors, it’s essential to account for this movement to prevent the doors from sticking or warping. A small gap of ⅛ to ¼ inch around the edges of the door (especially for inset doors) allows for this natural expansion. If the cabinets will be installed in a particularly humid or dry environment, consider these factors when sizing the doors. Accounting for wood movement ensures the longevity of the doors and prevents potential issues with operation over time.
9. Adjusting for Glass Panel Doors
If your design includes glass panel cabinet doors, sizing becomes slightly more complex due to the additional material. First, determine the size of the frame that will hold the glass panel. The frame needs to be wide enough to support the glass securely while still maintaining the overall dimensions of the door. You may need to adjust the thickness of the frame or leave space for rubber or silicone spacers that secure the glass. Glass panel doors can be inset, overlay, or partial overlay, so the same measurement principles apply, but additional attention to the frame construction is necessary.
10. Using Templates and Sketches
To avoid errors when sizing cabinet doors, it’s helpful to create templates or sketches. Measure each cabinet opening and overlay individually, then transfer these dimensions onto paper or a cardboard template. This approach allows you to double-check the size and layout before cutting or ordering the doors. For more complex designs, such as arched or raised panel doors, a template ensures accuracy and consistency. Using visual aids or digital design software can also help you plan the entire layout of your cabinetry and avoid mistakes when it comes time to install the doors.

Conclusion
Accurate measurement and consideration of various factors are crucial when sizing cabinet doors. Whether designing inset, overlay, or glass panel doors, taking into account the specific installation environment and hardware requirements ensures functionality and longevity. Thanks for reading, and we hope this has given you some inspiration on how to size cabinet doors!