How To Measure Kitchen Cupboard Doors: A Complete Guide
Do you need to measure kitchen cupboard doors? Yes, you can do it yourself! This guide shows you how. You need to measure existing doors or the cabinet openings. The right tools are a tape measure, pencil, and paper. This complete kitchen cabinet door sizing guide will help you get it right. It covers how to measure cabinet opening size and much more. This makes measuring for replacement cabinet doors simple.
Why Good Measurement Matters
Getting the right size for your cupboard doors is very important. If your measurements are wrong, your new doors will not fit. They might be too big or too small. This means you waste money and time. Exact sizes make sure your kitchen looks great. They help your doors work well. They open and close smoothly. Good measuring is the first step to a beautiful kitchen.
Tools You Will Need
Before you start, gather a few simple tools. These tools help you get accurate sizes.
- Steel Tape Measure: Use a good quality steel tape measure. It should be at least 12 feet long. A steel tape measure stays straight. This gives you exact numbers. Do not use a cloth tape measure. It can stretch.
- Pencil: You will need a pencil. Use it to write down your numbers.
- Paper or Notepad: Write down every measurement clearly. It is good to make a simple drawing of your cabinets. Label each door. This keeps you organized.
- Calculator: A calculator helps with simple math. You might need to add or divide numbers.
- Level (Optional): A level can check if your cabinet frames are straight. This is good for old cabinets.
- Flashlight (Optional): A flashlight helps you see in dark corners. This is useful inside cabinets.
Key Terms to Know
Before you measure, let us look at some common words. Knowing these terms makes the process easier.
- Cabinet Opening: This is the hole where the door sits. It is the space inside the cabinet frame. You measure this space for new doors.
- Face Frame: This is a wood frame on the front of the cabinet box. It acts like a border around the opening. Most older American cabinets have a face frame.
- Frameless Cabinet: These cabinets do not have a face frame. The cabinet box edges are the front. Modern European style cabinets are often frameless.
- Overlay: This term tells you how much the door covers the cabinet opening or face frame.
- Full Overlay: The door covers almost all of the face frame. Or, it covers the entire front edge of a frameless cabinet. Only a small gap is left around the door.
- Partial Overlay: The door covers only part of the face frame. You can see some of the face frame around the door.
- Inset Door: The door sits inside the cabinet opening. It is flush with the face frame. This style is less common for DIY replacement.
- Hinge: This is the hardware that lets the door swing open.
- Hinge Bore: This is the hole drilled in the back of the door for the hinge cup. It needs to be in the right place.
Door Types and Measuring Methods
The way you measure depends on your cabinet type. There are two main types: face frame and frameless.
Measuring Face Frame Cabinets
Face frame cabinets are common. They have a wood frame around each opening. This frame is wider than the cabinet box. Most old American kitchens use this style. When measuring face frame door measuring is key.
Full Overlay Door Measurement
Full overlay doors cover nearly all of the face frame. They leave only a small gap between doors. This gap is usually about 1/8 inch. You want your new door to look the same.
Steps for Full Overlay:
- Measure the Opening:
- Measure the width of the cabinet opening. Measure from left to right. Do this at the top, middle, and bottom. Use the largest number.
- Measure the height of the cabinet opening. Measure from top to bottom. Do this at the left, middle, and right. Use the largest number.
- Write these numbers down. For example, 15 inches wide by 20 inches high. This is how to measure cabinet opening for face frame.
- Add for Overlay:
- For width: Add 1 inch to your opening width. This adds 1/2 inch to each side of the opening. (This covers the face frame).
- For height: Add 1 inch to your opening height. This adds 1/2 inch to the top and 1/2 inch to the bottom. (This covers the face frame).
- Example: Opening 15″ W x 20″ H.
- New door width = 15″ + 1″ = 16″
- New door height = 20″ + 1″ = 21″
- This gives you the basic size for full overlay door measurement.
- Adjust for Gaps:
- You need a small gap between doors. This is usually 1/16 inch (0.0625 inches) or 1/8 inch (0.125 inches).
- If two doors are next to each other:
- Subtract 1/16 inch from the width of each door. Or, divide the total gap by the number of doors.
- Example: If two doors share a gap of 1/8 inch. Each door loses 1/16 inch from its width.
- So, if your door width was 16″, it becomes 15 15/16″ (16 – 1/16).
- For height: If a door is under a drawer, or two doors are stacked, you also need a gap.
- Subtract 1/16 inch from the height of each door.
- Example: If your door height was 21″, it becomes 20 15/16″ (21 – 1/16).
- Always use a gap of 1/16 inch for each door edge that touches another door or drawer front.
- This is part of calculating cupboard door size.
Here is a table to help with full overlay calculations for a single door over one opening:
| Measurement Type | Steps for Full Overlay Door | Example (Opening 15″ W x 20″ H) |
|---|---|---|
| Width | Open width + 1 inch – 1/16 inch (for shared gap if next to another door) | 15″ + 1″ – 1/16″ = 15 15/16″ |
| Height | Open height + 1 inch – 1/16 inch (for shared gap if below drawer/another door) | 20″ + 1″ – 1/16″ = 20 15/16″ |
Remember to adjust for shared gaps. If a door is on an end cabinet, it only needs a gap on one side. If it is in the middle, it needs gaps on both sides.
Partial Overlay Cabinet Dimensions
Partial overlay doors cover only part of the face frame. You can see a good amount of the frame around the door. This style is also common.
Steps for Partial Overlay:
- Measure the Opening:
- Measure the width of the cabinet opening. Measure top, middle, and bottom. Use the largest number.
- Measure the height of the cabinet opening. Measure left, middle, and right. Use the largest number.
- Write these down. This is part of how to measure cabinet opening.
- Look at Existing Doors:
- For partial overlay, it is often best to measure your old doors.
- Measure the exact width and height of each old door.
- Use these numbers directly. This is the easiest way to get partial overlay cabinet dimensions.
- If No Existing Doors (Rare for Partial Overlay):
- You need to decide how much the door will cover the face frame. This is usually 3/8 inch or 1/2 inch on each side.
- Add double that amount to your opening size.
- Example for 3/8 inch overlay:
- Width: Opening width + (3/8″ + 3/8″) = Opening width + 3/4″
- Height: Opening height + (3/8″ + 3/8″) = Opening height + 3/4″
- Always check the face frame. Make sure the new doors will not hit each other or cabinet parts.
- Adjust for Gaps:
- Like full overlay, you need small gaps. If you measure old doors, these gaps are already built in.
- If you calculate, subtract 1/16 inch from each door’s edge that touches another door or drawer.
Here is a table for partial overlay, usually by measuring existing doors:
| Measurement Type | Steps for Partial Overlay Door (Best Method) | Example (Existing door 14.5″ W x 19.5″ H) |
|---|---|---|
| Width | Measure existing door’s exact width. | 14 1/2″ |
| Height | Measure existing door’s exact height. | 19 1/2″ |
Measuring Frameless Cabinets
Frameless cabinets do not have a front face frame. The doors attach directly to the sides of the cabinet box. These are common in modern kitchens. They offer more storage space inside. Frameless cabinet door sizing is simpler. Doors for frameless cabinets are almost always full overlay.
Steps for Frameless Cabinets:
- Measure the Opening:
- Measure the exact width of the cabinet opening. Measure from the inside edge of one cabinet side to the other. Do this at top, middle, bottom. Take the largest number.
- Measure the exact height of the cabinet opening. Measure from the inside edge of the top panel to the bottom panel. Do this at left, middle, right. Take the largest number.
- Write these numbers down.
- Add for Overlay:
- Add 1/2 inch to the width of the opening. This makes the door 1/4 inch wider on each side.
- Add 1/2 inch to the height of the opening. This makes the door 1/4 inch taller on the top and bottom.
- Example: Opening 15″ W x 20″ H.
- New door width = 15″ + 1/2″ = 15 1/2″
- New door height = 20″ + 1/2″ = 20 1/2″
- This is the basic size for frameless cabinet door sizing.
- Adjust for Gaps:
- You need small gaps between doors. This is usually 1/8 inch (0.125 inches).
- If two doors are next to each other:
- Subtract 1/16 inch from the width of each door.
- Example: If your door width was 15 1/2″, it becomes 15 7/16″ (15 1/2 – 1/16).
- For height: If a door is under a drawer, or two doors are stacked:
- Subtract 1/16 inch from the height of each door.
- Example: If your door height was 20 1/2″, it becomes 20 7/16″ (20 1/2 – 1/16).
Here is a table to help with frameless cabinet door calculations:
| Measurement Type | Steps for Frameless Door | Example (Opening 15″ W x 20″ H) |
|---|---|---|
| Width | Open width + 1/2 inch – 1/16 inch (for shared gap) | 15″ + 1/2″ – 1/16″ = 15 7/16″ |
| Height | Open height + 1/2 inch – 1/16 inch (for shared gap) | 20″ + 1/2″ – 1/16″ = 20 7/16″ |
Remember these gap rules for all door types:
* Single door on an opening: Needs 1/16 inch gap around all four sides (top, bottom, left, right) if it is alone. So, add 1/8 inch to width and 1/8 inch to height of the opening, then subtract your gap.
* Two doors side-by-side on one opening (double doors): Each door covers half the width. They share a center gap. Divide the opening width by two. Then add the overlay amount. Then subtract 1/32 inch from each side of each door to create the center gap. This can get tricky. Often, it is better to measure the existing double doors if possible.
* Door below a drawer front: They share a gap. Each needs 1/16 inch taken from its height.
Measuring Tips for Various Door Styles
When measuring for replacement cabinet doors, you will find different setups. Here is how to handle them.
Single Doors
For a single door covering one opening:
1. Measure the opening’s width.
2. Measure the opening’s height.
3. Add the needed overlay (1 inch for face frame full overlay, 1/2 inch for frameless).
4. Subtract the gap needed. Usually 1/16 inch from each side that touches another door or drawer front. If it is a standalone door, you may subtract 1/16″ from all four edges to create a small reveal around the door.
Example: Face frame, full overlay, single door in the middle of a run.
Opening: 15″ W x 30″ H
Door size: (15″ + 1″) – 1/16″ (left gap) – 1/16″ (right gap) = 15 7/8″ W
(30″ + 1″) – 1/16″ (top gap with drawer) – 1/16″ (bottom gap with floor trim) = 30 7/8″ H
So, your door is 15 7/8″ W x 30 7/8″ H.
Double Doors
Double doors cover one wide opening. They meet in the middle.
1. Measure the entire width of the opening.
2. Measure the height of the opening.
3. Add the needed overlay. (Same as single doors).
4. Now, divide the total width by two. This gives you the width of each door.
5. Subtract half the desired gap (e.g., 1/16 inch if the total gap is 1/8 inch) from each door’s shared edge.
6. Subtract any other gaps needed on the outside edges (1/16 inch for each edge that meets another door or cabinet end).
Example: Face frame, full overlay double doors.
Opening: 30″ W x 30″ H
Total door width: (30″ + 1″) = 31″
Now, for two doors:
Each door’s basic width = 31″ / 2 = 15.5″
Subtract 1/32″ from the shared edge for each door (this creates a 1/16″ gap in the middle).
Subtract 1/16″ from the outside edge of each door.
So, each door width = 15.5″ – 1/32″ (inner gap) – 1/16″ (outer gap) = 15 13/32″
Each door height = (30″ + 1″) – 1/16″ (top gap) – 1/16″ (bottom gap) = 30 7/8″
So, you need two doors, each 15 13/32″ W x 30 7/8″ H.
Drawer Fronts
Drawer fronts are measured much like doors. They are usually full overlay.
1. Measure the opening for the drawer. This is the height and width of the drawer box opening.
2. Add the overlay. (1 inch for face frame, 1/2 inch for frameless).
3. Subtract for gaps. Each edge that touches another drawer front, door, or cabinet part needs a 1/16 inch gap.
Example: Face frame, full overlay drawer front.
Opening: 20″ W x 8″ H
Drawer front size:
(20″ + 1″) – 1/16″ (left gap) – 1/16″ (right gap) = 20 7/8″ W
(8″ + 1″) – 1/16″ (top gap) – 1/16″ (bottom gap with door) = 8 7/8″ H
So, your drawer front is 20 7/8″ W x 8 7/8″ H.
Calculating Cupboard Door Size
This is the main step for new cabinet front measurements.
Here is a summary of the math:
For Face Frame Cabinets (Full Overlay):
* Width: (Cabinet Opening Width + 1 inch) – (Number of Gaps on Width x 1/16 inch)
* Height: (Cabinet Opening Height + 1 inch) – (Number of Gaps on Height x 1/16 inch)
* Example: For a single door, 2 gaps on width (left, right), 2 gaps on height (top, bottom). So subtract 2/16″ (1/8″) from width and 2/16″ (1/8″) from height.
For Frameless Cabinets (Full Overlay):
* Width: (Cabinet Opening Width + 1/2 inch) – (Number of Gaps on Width x 1/16 inch)
* Height: (Cabinet Opening Height + 1/2 inch) – (Number of Gaps on Height x 1/16 inch)
* Example: Same gap rules apply.
General Rule for Gaps (for any style):
* Each edge of a door or drawer front that meets another door, drawer front, or cabinet end needs a 1/16 inch space.
* If a door is on the far end of a cabinet run, it only needs a gap on the side facing other doors. The side against the wall does not need an overlay for clearance. However, it still needs to be small enough not to hit the wall or trim. Sometimes, it is easier to just measure the door from your existing set.
How to Measure When No Old Doors Exist:
This is when how to measure cabinet opening is vital.
1. Measure the exact inside width of the opening in three spots: top, middle, bottom. Write down the largest number.
2. Measure the exact inside height of the opening in three spots: left, middle, right. Write down the largest number.
3. Add the overlay needed for your cabinet type (face frame or frameless).
4. Subtract the proper gaps for each side.
Example for a new kitchen (no old doors):
You have a face frame cabinet opening that is 18″ wide and 24″ high. You want a single full overlay door.
* Width: 18″ (opening) + 1″ (overlay) – 1/16″ (left gap) – 1/16″ (right gap) = 19″ – 1/8″ = 18 7/8″
* Height: 24″ (opening) + 1″ (overlay) – 1/16″ (top gap) – 1/16″ (bottom gap) = 25″ – 1/8″ = 24 7/8″
So, your new door size is 18 7/8″ W x 24 7/8″ H. This is calculating cupboard door size.
Always double-check your math. It helps to have someone else check your numbers.
Hinge Bore Placement Guide
The hinge bore location guide is very important. This is where holes are drilled into the back of your new doors. These holes hold the hinge cups. If they are wrong, your doors will not hang right.
- Standard Bore Distance: Most cabinet doors use a standard bore distance. This is the measurement from the top or bottom edge of the door to the center of the hinge bore hole.
- For upper doors (wall cabinets), this is usually 2.5 inches (63.5mm) from the top and bottom edge.
- For lower doors (base cabinets), it is also usually 2.5 inches (63.5mm) from the top and bottom edge.
- Existing Doors are Best: The best way to find the correct bore location is to measure your old doors.
- Remove an old door.
- Lay it flat.
- Measure from the top edge of the door to the center of the first hinge bore.
- Measure from the bottom edge of the door to the center of the last hinge bore.
- If there are middle hinges, measure from the top edge to the center of each middle bore.
- Write these numbers down.
- Bore Diameter: Most European style hinges use a 35mm (about 1 3/8 inch) diameter hole. This is standard.
- Edge Distance (Bore-to-Edge): This is the distance from the edge of the door to the edge of the bore hole. It is usually 3mm, 4mm, 5mm, or 6mm. This distance affects how much the door overlays the cabinet. If you are using new hinges, check their instructions. If you are reusing old hinges, check your old doors. Measure from the edge of the door to the edge of the hinge cup hole.
Table for Standard Hinge Bore Placement:
| Door Type | Distance from Top/Bottom Edge to Center of Hinge Bore | Bore Diameter |
|---|---|---|
| Most Doors | 2.5 inches (63.5 mm) | 35 mm |
| If More Than 2 Hinges | Space additional hinges evenly between the top and bottom hinges. | 35 mm |
Always check your existing doors and hinges. This is the safest way to ensure hinge bore location guide is followed correctly. Some shops will ask for these bore distances when you order new cabinet front measurements.
Final Checks and Tips
Before you order your new doors, take these steps. They help avoid mistakes.
- Double Check All Measurements: Go over every number. Measure twice, cut once. Have a friend or family member check your work. This is very important.
- Draw a Diagram: Sketch your cabinets. Label each opening with its size and the final door size. This visual aid can catch errors.
- Number Your Openings: Give each cabinet opening a number. For example, “Upper Cabinet 1,” “Base Cabinet 2.” Then write down the measurements for each. This keeps you organized.
- Consider Door Swing: Think about how the doors will open. Will they hit other doors, walls, or appliances? Make sure there is enough space.
- Handle and Knob Placement: Decide where your handles or knobs will go. This does not affect door size, but it is good to plan. Many people measure from the top or bottom edge to the center of the handle.
- Small Gaps are Key: Remember that small gaps (like 1/16 inch) are very important for doors to work right. They prevent doors from rubbing. They also give your kitchen a clean look.
- Review Supplier’s Guide: When you buy doors, the supplier might have their own sizing guide. Always check their specific instructions. They might have slightly different rules for gaps or overlay.
This kitchen cabinet door sizing guide helps you get ready. Taking the time to measure correctly saves you trouble later.
Frequently Asked Questions (FAQ)
Q: What if my cabinet openings are not perfectly square?
A: Measure in at least three spots (top, middle, bottom for width; left, middle, right for height). Use the largest measurement you get. This ensures the door will fit in the largest part of the opening. It is better for a door to be slightly small than too big.
Q: Can I just measure my old doors instead of the openings?
A: Yes, if your old doors fit well and you want the new doors to be the exact same size. This is often the easiest way, especially for partial overlay doors. However, if you want to change the overlay type (e.g., from partial to full), or if your old doors do not fit perfectly, you should measure the cabinet openings.
Q: What is a standard overlay?
A: For face frame cabinets, common partial overlays are 1/2 inch or 3/8 inch. Full overlay is typically 1 1/4 inch to 1 3/8 inch on each side of the opening, meaning the door covers almost all of the frame. For frameless cabinets, full overlay is usually 1/4 inch on each side of the opening.
Q: Do I need to buy new hinges with new doors?
A: It depends. If your old hinges are in good shape and fit the new door’s bore holes, you might reuse them. However, if your old hinges are worn or if the new doors need different bore locations, new hinges are a good idea. New doors often come with new hinges as an option.
Q: How do I measure for an appliance garage door?
A: Measure the full opening height and width for the appliance garage. Treat it like a single large door. Pay close attention to how it will open. Make sure it does not hit appliances inside or overhead cabinets. These often need special hinge types.
Q: What if I have an odd-shaped cabinet, like a corner cabinet?
A: Corner cabinets can be tricky. They often have angled doors or bi-fold doors. It is best to measure the existing doors on these units very carefully. If there are no existing doors, you might need help from a professional cabinet maker. Or, you can look up specific guides for corner cabinet doors.
Q: Should I round up or down my measurements?
A: Always be exact. Use fractions like 1/16 or 1/32 inch. If you must round, it is often better to round down slightly (by 1/32 or 1/16 inch). A slightly smaller door is better than one that is too big to fit. But exact measurement is always the goal.