Maximize Your Kitchen Space: Extending Upper Cabinets
Are you looking to add more storage and functionality to your kitchen? One often overlooked solution is extending your upper cabinets. This not only increases your storage space but also creates a seamless, cohesive look in your kitchen. Here's a comprehensive guide on how to extend upper kitchen cabinets, ensuring your project is both visually appealing and structurally sound.
Assessing Your Kitchen Layout
Before you start, assess your kitchen layout. Consider the height of your ceilings, the location of windows and light fixtures, and the placement of your existing cabinets. This will help you determine how high you can extend your cabinets and where you can safely install new ones.
Measuring for Extension
Use a tape measure to determine the height you want to extend your cabinets. Standard upper cabinets are about 30 inches tall, so you might want to extend them to 42 inches or even higher, depending on your ceiling height. Make sure to leave enough space for tall items like mixing bowls or stockpots.

Gathering Materials and Tools
- New cabinet boxes (if needed)
- Crown molding
- Jigsaw or circular saw
- Drill and driver bits
- Screws
- Wood glue
- Caulk
- Paint or stain (to match your existing cabinets)
Extending Existing Cabinets
If your existing cabinets are in good condition, you can extend them by adding a new face frame and doors. Here's how:
Building the Face Frame
Measure and cut pieces of 1x4 or 1x6 lumber to match the width and height of your extension. Attach these pieces to the front of your existing cabinet boxes using wood glue and screws, creating a new face frame.
Adding New Doors
Measure and order new cabinet doors to match the size of your extension. Attach these doors to the new face frame using hinges.

Installing New Cabinet Boxes
If you need to add more storage space, you can install new cabinet boxes above your existing ones. Here's how:
Attaching the New Boxes
Use a jigsaw or circular saw to cut the top of your existing cabinets to match the height of your new boxes. Attach the new boxes to the wall and to each other using screws and wood glue. Then, attach them to the existing cabinets.
Adding Crown Molding
Measure and cut pieces of crown molding to fit the top of your extended cabinets. Attach these pieces using wood glue and nails or a nail gun. This will give your cabinets a finished look and help hide any gaps between the cabinets and the ceiling.
Finishing Touches
Once your cabinets are extended, fill any gaps with caulk and touch up any paint or stain as needed. Stand back and admire your handiwork! You've just added valuable storage space and enhanced the look of your kitchen.
Safety Considerations
Always ensure that your extended cabinets are securely attached to the wall and the ceiling. This is especially important if you plan to store heavy items. Also, be mindful of any electrical outlets or light fixtures when making cuts or drilling holes.
| Cabinet Height | Recommended Extension Height |
|---|---|
| 8 feet | Up to 42 inches |
| 9 feet | Up to 48 inches |
| 10 feet | Up to 54 inches |
Remember, these are just guidelines. The best extension height for your kitchen will depend on your specific layout and needs. Happy renovating!
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