Feeling intimidated by installing crown molding yourself? We felt the same way — until we installed crown molding in our daughter’s bedroom. It turned out to be inexpensive (under $100) and far easier than we expected. With the right tools and a bit of patience, the project comes together quickly.
Here’s a clear, practical walkthrough of how we did it and why this went from a dreaded task to one we’d happily repeat.
Steps To Install Crown Molding
Below is a concise overview of the steps you’ll follow. A detailed photo tutorial is included throughout the article.
- Select crown molding
- Determine cutting angles
- Set up your cutting platform
- Measure walls and cut pieces
- Nail molding in place
- Caulk and paint for a finished look
Selecting Your Crown Molding
We chose standard 3 5/8″ pre-primed crown molding from a big-box store to match the molding already in the house. It’s affordable and comes in common spring angles. Each 8-foot piece cost about $9.50; with a few extras for mistakes, our material cost was $72.
There are many profiles and options; choose one that fits your style and budget.
Tools & Materials Needed
Cutting and installing crown molding can be done by hand, but power tools make the process much faster and more accurate. The main tools we used:
- Miter saw
- Nail gun (brad nailer)
- Kreg Crown-Pro (cutting platform)
- Measuring tape
- Stud finder
- Pencil
- Caulk and caulk gun
- Paint and a short angled brush
- Ladder or step stool
We already owned a saw and nail gun and purchased the Kreg Crown-Pro, which proved essential for accurate cuts.
How To Use A Kreg Crown Pro
The Kreg Crown Pro creates an angled, adjustable platform that matches the crown’s spring angle to the angle you cut on the miter saw. Assembly is quick and straightforward. The kit includes an Angle-Finder to determine the spring angle — commonly 38°, 45°, or 52°. Ours measured 38°.
Set the red guide on the underside of the Crown Pro to the matching spring angle, attach the platform to your miter saw, and you’re ready to make consistent cuts.
Determine Your Wall Angles
Measure and record the angle of every corner in the room — walls are often slightly out of square. Use the angle finder to record each corner’s measurement. Small deviations from 90° will affect your miter settings, so check every corner.
Most of our corners were close enough to 90° that we could use a 45° cut for many joints, but the Crown Pro manual explains adjustments for off-square corners.
Measure Your Wall Lengths
Measure corner-to-corner for each wall and record the lengths on a sketch. This step is faster with two people or with a laser tape measure. Accurate lengths prevent wasted cuts and make sequencing pieces easier.
Set The Angle Of Your Miter Saw
Set your miter saw according to the type of corner you’re cutting (inside vs outside) and which side of the corner the piece will occupy. The Crown Pro includes a guide showing the blade rotation and board placement for common cuts. Double-check the guide before making cuts.
Cutting Your Crown Molding
Place the molding upside down on the Crown Pro so the ceiling edge sits on the bottom. With your measurements, saw angle, and Crown Pro set, cut each piece carefully. Remember: measure twice, cut once. Leave a little extra on the first cut if you’re unsure — you can always trim more.
It took roughly two hours to cut and position all the pieces in our bedroom.
Nail Your Crown Molding In Place
Secure the molding by nailing through the crown into studs and framing. We used 2″ 18-gauge brad nails and placed fasteners every 12–16 inches, hitting both the top and bottom edges to hold the molding tight to the ceiling and wall. A cordless nailer speeds this step and eliminates the need for an air compressor.
How To Make A Scarf Joint
When a wall is longer than a single piece of molding, overlap the two pieces with a scarf joint for a smoother transition. Cut one piece like an inside left corner and the adjoining piece like an outside right corner (or the opposite pair) so they overlap neatly rather than butting end-to-end.
Finish With Caulk & Paint
After hanging, caulk all gaps and seams with a paintable caulk: where the crown meets the ceiling, where it meets the wall, at joints between pieces, and over nail holes (or use wood putty/spackle for holes). Smoothing and sanding the caulk when dry creates a seamless surface for paint. We used white paintable caulk and then applied semigloss trim paint with a small angled brush to match the room’s trim.
Total Crown Molding Project Cost
Our material cost was $67 and the Kreg Crown Pro was about $30, bringing our total to roughly $97. That’s an affordable update that adds a noticeable finish to the room and is often a desirable feature for potential buyers.
More Crown Molding Projects & How-Tos
Since completing this installation we’ve tried other crown molding projects, including layering for a chunkier, more custom look and adding molding to cabinets and built-ins. Practice makes this process easier — once you crack the code, crown molding is a satisfying way to elevate any room.
- How To Install Chunky Crown Molding For An Upgraded Look
- Adding Crown Molding To Kitchen Cabinets
- Installing Crown Molding Around Built-In Bookcases
Have a crown molding tip or a first-time horror story that turned into success? Share your advice and experiences — every trick helps the next project go more smoothly.