Keep butt-joint face-frame cuts separate from miter long points.
Do rails fit between continuous stiles or meet at mitered corners?
Use the matching calculator
Use this decision sequence
- Identify the arrangement already specified in your drawing.
- For a between-stiles face frame, subtract both stile face widths from rail length.
- For a mitered surround, identify the short and long point dimensions explicitly.
- Use the matching tool instead of transferring one arrangement’s cut lengths to another.
Keep the quantities distinct
| Quantity or assumption | How to use it |
|---|---|
| Continuous stiles | Run full outside height in the face-frame model. |
| Between-stiles rails | Outside width minus both stile widths. |
| Mitered surround | Uses angle-dependent long-point dimensions. |
Worked comparison
An illustrative 1 m-wide face frame with two 0.1 m-wide stiles needs 0.8 m rails between them. A mitered surround around a 1 m inside opening with 0.1 m face width instead has 1.2 m long-point cuts at 45° ends. The 0.4 m difference comes from different dimension boundaries and join arrangements, not inconsistent rounding.
Check before using the estimate
Joint selection, strength and tool setup are outside these supplied-dimension calculations.
All dimensions, product properties, prices and specifications in this example are illustrative arithmetic inputs. Use the values from your measured plan, selected product data sheet and supplier quote. This guide does not choose construction specifications or certify safety.
Calculation and scope checked 2026-10-04. Methods and scope.
Related decisions
State end-cut angles relative to square before calculating blanks
Is a supplied angle measured from a square end or from the board edge?
Include both end stiles in a decorative wall layout
Why does a row of three panel openings need four vertical strips?
Read long-point dimensions in a mitered frame
Why are mitered cut lengths larger than the inside opening?