Use our free crown molding spring angle finder to determine the angle at which your crown molding sits between the wall and ceiling. Choose a common 38°, 45° or 52° spring angle, or enter your crown molding measurements to calculate the angle.
What Is a Crown Molding Spring Angle?
The crown molding spring angle is the angle at which the molding sits against the wall when installed between the wall and ceiling. Knowing this angle is important when determining the correct miter and bevel settings for cutting crown molding.
Common crown molding profiles typically use 38°, 45° or 52° spring angles. For example, you may see molding described as 38°/52° or 45°/45° crown. However, older molding, custom profiles and decorative trim may use different angles.
The spring angle should not be confused with the corner angle of the room. The corner angle describes where two walls meet, while the spring angle describes the installed position of the crown molding itself.
When cutting crown molding flat on a compound miter saw, both the wall angle and crown spring angle are used to determine the proper miter and bevel settings.
How to Find the Spring Angle of Crown Molding
If you know the specifications of your crown molding, you can select its spring angle directly in the calculator. If you don't know the spring angle, measure the crown in its installed position.
First, measure the wall drop from the ceiling down to the bottom edge of the crown molding. Next, measure the ceiling projection from the wall outward to where the crown meets the ceiling.
Enter both measurements into the Crown Molding Spring Angle Finder. You can use inches, centimeters or millimeters as long as both measurements use the same unit.
The calculator will determine the estimated spring angle and indicate whether it is close to one of the common crown molding profiles:
38° spring angle — commonly referred to as 38°/52° crown.
45° spring angle — symmetrical 45°/45° crown.
52° spring angle — commonly referred to as 52°/38° crown.
Measure carefully before making your cuts. Even a small measurement error can affect compound miter and bevel settings.
Once you've identified your spring angle, use our Crown Molding Cut Calculator to determine the miter and bevel settings needed for your inside corners, outside corners and out-of-square walls.
