How to Install Crown Molding on Kitchen Cabinets Easily

Yes, you can install crown molding on kitchen cabinets yourself! With the right tools and a bit of patience, this project can be a rewarding DIY endeavor that significantly elevates the look of your kitchen. This guide will walk you through the process of cabinet crown molding installation, transforming your cabinets with elegant kitchen cabinet trim.

Adding crown molding for cabinets is a fantastic way to give your kitchen a custom, high-end appearance. It bridges the gap between your cabinets and the ceiling, creating a finished and sophisticated look. This guide focuses on making cabinet molding techniques straightforward for the home remodeler. We’ll cover everything from choosing the right types of cabinet crown molding to the final touches of attaching cabinet crown.

Why Add Crown Molding to Your Kitchen Cabinets?

Before we dive into the “how,” let’s explore the “why.” Cabinet top molding, often referred to as crown molding or cornice, offers several benefits:

Aesthetic Appeal: It adds a decorative flourish, making your cabinets look more substantial and custom-built. It can hide imperfections where the cabinet meets the ceiling.
Visual Height: For cabinets that don’t quite reach the ceiling, crown molding can create the illusion of greater height, making your kitchen feel more expansive.
Design Consistency: It ties the cabinets into the overall architectural style of your home, especially if you have crown molding in other rooms.
Value Addition: A well-executed crown molding installation can increase the perceived value of your kitchen.

Selecting Your Cabinet Crown Molding

Choosing the right crown molding for cabinets is crucial for a successful project. There are several factors to consider:

Types of Cabinet Crown Molding

Solid Wood: This is the most traditional and versatile option. It can be stained or painted to match your cabinets or to create a contrast. Common woods include pine, poplar, oak, and maple. It’s durable and can be sanded and refinished if needed.
MDF (Medium-Density Fiberboard): MDF molding is generally more affordable than solid wood. It’s smooth and takes paint very well, making it a popular choice for painted cabinets. However, it’s less moisture-resistant than wood and can be damaged by excessive moisture.
Polyurethane: Made from molded polyurethane, this material is lightweight, durable, and resistant to moisture and insects. It can be pre-primed and painted or stained to mimic wood. It’s a good choice for kitchens where humidity can be a factor.
PVC: Similar to polyurethane, PVC molding is highly resistant to moisture and is often used in areas prone to water. It’s also lightweight and easy to cut.

Molding Profiles and Sizes

Molding comes in a vast array of profiles, from simple and clean lines to ornate and detailed designs.

Simple Profiles: Often feature a single curve or a combination of a small cove and a fillet. These work well with modern or minimalist cabinetry.
Complex Profiles: These can include multiple curves, beads, and ogees, adding a more traditional or decorative feel. These are great for classic or decorative cabinet molding styles.

The size of the molding should be proportionate to your cabinets and ceiling height. A general rule of thumb is to use molding that is about 1/4 to 1/3 the height of your cabinet doors. For very tall ceilings, you might opt for wider molding.

Essential Tools and Materials for Attaching Cabinet Crown

Gathering your tools and materials before you start is key to a smooth cabinet crown molding installation.

Tools You’ll Need:

Miter Saw: Essential for making accurate angled cuts. A compound miter saw is ideal for the angled cuts required for crown molding.
Measuring Tape: For precise measurements.
Pencil: For marking measurements.
Stud Finder: To locate ceiling joists for secure attachment.
Level: To ensure your molding is installed straight.
Coping Saw or Oscillating Multi-Tool: For making precise inside corner cuts (coping).
Nail Gun (Brad Nailer or Finish Nailer): With appropriate nail size (e.g., 16-gauge or 18-gauge) for attaching the molding.
Air Compressor (if using a nail gun):
Safety Glasses: Always protect your eyes.
Gloves: For a better grip and protection.
Caulk Gun: For applying caulk.
Sanding Block or Sandpaper: For smoothing edges and filling nail holes.
Putty Knife or Spackle Knife: For applying wood filler or caulk.
Optional: Router with a matching profile bit: If you need to create custom molding or adjust existing pieces.

Materials You’ll Need:

Crown Molding: Measure your cabinet runs carefully, adding at least 10-15% for cuts and potential mistakes.
Wood Glue: For reinforcing corner joints.
Finishing Nails: Appropriately sized for your nail gun.
Wood Filler or Spackle: For filling nail holes and small gaps.
Caulk (Paintable): For filling small gaps between the molding and the cabinet or ceiling.
Paint or Stain: To match your cabinets or desired finish.
Primer (if painting):

Planning Your Cabinet Crown Molding Installation

Proper planning is vital for a professional-looking finish.

Measure Your Cabinet Runs

Start by measuring the length of each cabinet run where you’ll be installing molding. Measure along the top front edge of the cabinets.

Account for Corners

Outside Corners: Measure from the outside edge of one cabinet to the outside edge of the next.
Inside Corners: Measure from the inside edge of one cabinet to the inside edge of the next.

Estimate Quantity

Add up all your measurements and add about 10-15% extra to account for any mistakes or tricky cuts. It’s always better to have a little extra than to run short.

Consider Ceiling Joists

If you can, locate ceiling joists above your cabinets using a stud finder. Nailing into joists will provide the most secure attachment for your cabinet top molding. If joists aren’t in alignment, you’ll need to rely on the strength of the cabinet itself and the nails.

Step-by-Step Guide to Installing Crown Molding on Kitchen Cabinets

This section details the practical steps for installing cabinet cornice. We’ll focus on the common technique of cutting crown molding with a miter saw.

Step 1: Prepare Your Workspace

Clear the area around your cabinets.
Ensure good lighting.
Lay down a drop cloth to protect your countertops and floors from dust and debris.

Step 2: Make Your First Cut (Test Piece)

This is where the magic happens, and a test piece is your best friend.

Miter Saw Setup: Most crown molding is installed at an angle. The standard method involves placing the molding upside down on the miter saw base, with the back of the molding against the fence.
- Setting the Angle: The most common way to cut crown molding is by setting your miter saw to a 38-degree or 45-degree bevel (depending on your molding’s angle). For standard crown molding that sits at a 38-degree angle against the wall, you’ll often need to set your miter saw to 38 degrees.
- Cutting an Outside Corner: For an outside corner, you’ll make two angled cuts that meet. For a piece that extends to the right, the first cut will angle away from you to the left. For a piece that extends to the left, the first cut will angle away from you to the right. The cut angle is often the same as the molding’s spring angle (e.g., 38 or 45 degrees), and the bevel angle is typically set to 0.
- Cutting an Inside Corner: For an inside corner, the cuts will angle towards each other. For a piece that fits into an inside corner on the right, the first cut will angle towards you to the left. For a piece fitting into an inside corner on the left, the first cut will angle towards you to the right.
Practice Cuts: It’s highly recommended to make test cuts on scrap pieces of molding. This helps you confirm your saw settings and practice how the molding fits together. You want the two pieces to meet tightly at the corner.

Step 3: Measure and Cut Your First Piece

Measure the length of the first cabinet run.
Transfer this measurement to your molding.
Make your first angled cut on the molding. Ensure the angle is correct for the corner you’re fitting (inside or outside).
Measure from the longest point of the angled cut to the point where your next angle will begin. Mark this point.
Make the second angled cut on the molding. This second cut should mirror the first, creating the desired corner joint.

Step 4: Attach the First Piece

Hold the cut piece of molding in place against the cabinet.
Use a level to ensure it’s straight.
Using your nail gun, nail the molding into place. Aim for the thicker parts of the molding and try to hit studs if possible. Space nails about 16-24 inches apart. You can also nail into the top of the cabinets.
Apply a small amount of wood glue to the angled joint before fitting the next piece, if you’re making a long run.

Step 5: Cutting and Fitting Inside Corners

Inside corners can be tricky. While a simple miter cut works for some inside corners, often a coping saw or multi-tool is used for a tighter, more professional fit.

The Coping Method:
1. Make a straight cut (90 degrees) on the end of the molding that will butt up against the cabinet side.
2. Now, take another piece of molding and make a standard miter cut for an inside corner (e.g., a 45-degree cut).
3. Hold this second piece against the cabinet and trace the profile of the molding onto it with a pencil.
4. Using a coping saw or oscillating multi-tool, carefully cut along the pencil line, following the profile. This creates a curved edge that will fit snugly against the mitered edge of the first piece.
5. Test the fit. The coped piece should fit perfectly against the mitered edge of the adjacent molding.

Step 6: Cutting and Fitting Outside Corners

Outside corners are generally easier as you’ll be making two mirrored miter cuts.

Measure the length needed.
Set your miter saw to the appropriate angle (often 45 degrees for a 90-degree outside corner).
Make the first cut, angling away from the corner.
Measure from the longest point of that cut and make the second cut, angling towards the corner.
Test the fit. The two angled edges should meet perfectly to form the outside corner.

Step 7: Continue Installing Along Cabinet Runs

Measure, cut, and attach each subsequent piece of molding, ensuring a tight fit at the corners.
Use wood glue on the end joints for added strength.
Nail each piece securely.

Step 8: Filling Nail Holes and Gaps

Once all the molding is in place, use wood filler to fill all the nail holes.
Allow the wood filler to dry completely, then sand it smooth.
Use paintable caulk to fill any small gaps between the molding and the cabinet or the ceiling. A damp finger or a caulk-smoothing tool can help create a clean bead.

Step 9: Painting or Staining

If you’re painting, apply a coat of primer to the molding.
Once the primer is dry, apply one or two coats of paint that matches your cabinets or your desired color.
If you’re staining, apply the stain according to the manufacturer’s instructions. You may need to use a pre-stain conditioner for even absorption, especially on softer woods.
Apply a protective topcoat (polyurethane or varnish) if desired for added durability.

Advanced Cabinet Molding Techniques and Tips

Here are some extra tips and techniques to enhance your cabinet molding installation:

Mitering vs. Coping for Corners

Corner Type	Miter Cut	Coping Cut	Best Use
Inside Corner	Two pieces cut at opposing angles (e.g., 45°)	One piece mitered, the other shaped to match the profile	Coping offers a more forgiving and seamless fit, especially if walls aren’t perfectly square.
Outside Corner	Two pieces cut at opposing angles (e.g., 45°)	Typically not used; miter cuts are standard	Miter cuts are standard and create a clean, crisp line.

Using a Crown Molding Jig

If you have a compound miter saw, you can use a crown molding jig. This allows you to cut the molding flat on the saw table, mimicking how it will sit on the cabinets. This can be easier for some to visualize and execute precise cuts.

Handling Contractions and Expansions

Wood can expand and contract with changes in humidity. For long runs, consider using a small expansion joint or a flexible caulk to prevent cracking.

Working with Different Cabinet Types

Frameless Cabinets: These offer a flat surface, making attachment straightforward.
Face-Frame Cabinets: The face frame adds a slight lip. You may need to adjust your cuts or use shims for a flush fit.

Troubleshooting Common Issues

Gaps: Small gaps can usually be filled with caulk or wood filler. Larger gaps might indicate an inaccurate cut.
Molding Not Sitting Flush: This could be due to an uneven cabinet top or a slightly bowed piece of molding. Small shims can sometimes help.
Nails Splitting Wood: Use the correct nail size for your molding. Predrilling pilot holes for very hard woods can prevent splitting.

Frequently Asked Questions (FAQ) about Cabinet Crown Molding

Can I install crown molding on cabinets that don’t go to the ceiling?

Yes, absolutely! This is a very common scenario. Crown molding is often used to give the appearance of taller cabinets and a more finished look, even when there’s a gap above them.

What is the best type of molding for a kitchen?

For kitchens, moisture resistance is a key factor. Polyurethane, PVC, or well-sealed solid wood (like oak or maple) are excellent choices. MDF is suitable if the kitchen is well-ventilated and moisture is not a major concern, but it’s best to paint MDF rather than stain it.

How do I make sure my crown molding is straight?

Use a level at every step of the installation. Check the molding against the cabinet top and the ceiling. Slight adjustments can often be made before the adhesive sets or nails are fully driven.

Do I need to glue the corners?

Yes, applying wood glue to the mitered or coped joints before fastening will create a much stronger and more durable connection.

How do I attach crown molding if I don’t have a nail gun?

You can use a hammer and finishing nails. This will require more care to avoid denting the molding. Use a nail set to drive the nails flush or slightly below the surface, then fill the holes with wood filler.

What if my cabinets have an overhang?

If your cabinets have a decorative edge or overhang, you may need to account for this in your measurements and cuts. Sometimes, a piece of trim can be added to the cabinet edge to create a flush surface for the crown molding to attach to.

How much crown molding do I need?

Measure each cabinet run and add about 10-15% to your total for cuts and waste.

By following these steps and tips, you can confidently tackle the cabinet crown molding installation and add a beautiful, custom touch to your kitchen. Enjoy your newly enhanced kitchen cabinet trim!