Crown molding angle chart
Miter and bevel settings for cutting crown flat on the saw table, for every common spring angle and corner. The last column is the single setting for cutting it nested against the fence.
| Spring angle | 90° corner — miter / bevel | 120° corner — miter / bevel | 135° corner — miter / bevel | Nested miter (90°) |
|---|---|---|---|---|
| 38.0° | 31.6° / 33.9° | 19.6° / 23.2° | 14.3° / 17.6° | 45.0° |
| 45.0° | 35.3° / 30.0° | 22.2° / 20.7° | 16.3° / 15.7° | 45.0° |
| 52.0° | 38.2° / 25.8° | 24.5° / 17.9° | 18.1° / 13.6° | 45.0° |
Reading it
- A square outside corner takes the same settings as a square inside one — what changes is which side of the line you keep.
- 38° is the common spring in North America and 45° is the other one you will meet. If the molding came off a job and nobody knows, measure its drop down the wall and its reach across the ceiling.
- These assume the wall angle you measured is the real one. Corners are rarely square; measuring beats assuming.
For the case this table does not cover
- Crown molding angles
The miter and bevel for any corner and any spring angle, plus the single setting for cutting it nested.
- Segmented rings and columns
Miter and bevel for any number of sides, flat or flared, and how long each segment has to be.
The tool this table is for
- Miter saw
Trim, crown and every corner that is not quite ninety degrees.