Examples
Examples
Try the starting example
- Finished canvas width (mm)
- 600
- Finished canvas height (mm)
- 800
- Bar face width (mm)
- 40
- Supplied canvas wrap/fastening allowance each edge (mm)
- 60
- Miter long-point cuts [length mm,quantity]
- [[600,2],[800,2]]
- Miter short-point cuts [length mm,quantity]
- [[520,2],[720,2]]
- Canvas blank dimensions (mm)
- [720,920]
- Total bar cut length (mm)
- 2800
Try another scenario
- Finished canvas width (mm)
- 700
- Finished canvas height (mm)
- 800
- Bar face width (mm)
- 40
- Supplied canvas wrap/fastening allowance each edge (mm)
- 60
- Miter long-point cuts [length mm,quantity]
- [[700,2],[800,2]]
- Miter short-point cuts [length mm,quantity]
- [[620,2],[720,2]]
- Canvas blank dimensions (mm)
- [820,920]
- Total bar cut length (mm)
- 3000
Calculation method
Calculation method
Miter long-point cuts [length mm,quantity]
J([[a,2],[b,2]])
Miter short-point cuts [length mm,quantity]
J([[a-2*c,2],[b-2*c,2]])
Canvas blank dimensions (mm)
J([a+2*d,b+2*d])
Total bar cut length (mm)
2*(a+b)
Symbols and units
- a
- Finished canvas width (mm)
- b
- Finished canvas height (mm)
- c
- Bar face width (mm)
- d
- Supplied canvas wrap/fastening allowance each edge (mm)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Rectangular 45° mitered stretcher only; finished exterior dimensions exceed twice bar width. Joint allowances and wrap requirements supplied, no structural stretching advice. Supported limits: All numeric inputs must be finite. Only the explicitly described mathematical scenario is supported.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.