Examples
Examples
Try the starting example
- Roof width between edge details (mm)
- 10300
- Panel effective cover width (mm)
- 500
- Supplied left detail allowance (mm)
- 100
- Supplied right detail allowance (mm)
- 100
- Panels required
- 21
- Last panel effective width (mm)
- 100
- Panel seam x positions (mm)
- [600,1100,1600,2100,2600,3100,3600,4100,4600,5100,5600,6100,6600,7100,7600,8100,8600,9100,9600,10100]
Try another scenario
- Roof width between edge details (mm)
- 10600
- Panel effective cover width (mm)
- 500
- Supplied left detail allowance (mm)
- 100
- Supplied right detail allowance (mm)
- 100
- Panels required
- 21
- Last panel effective width (mm)
- 400
- Panel seam x positions (mm)
- [600,1100,1600,2100,2600,3100,3600,4100,4600,5100,5600,6100,6600,7100,7600,8100,8600,9100,9600,10100]
Calculation method
Calculation method
Panels required
ceil((a-c-d)/b)
Last panel effective width (mm)
(a-c-d)-(ceil((a-c-d)/b)-1)*b
Panel seam x positions (mm)
J([c+i*b for i in range(1,ceil((a-c-d)/b))])
Symbols and units
- a
- Roof width between edge details (mm)
- b
- Panel effective cover width (mm)
- c
- Supplied left detail allowance (mm)
- d
- Supplied right detail allowance (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
- One rectangular width, constant manufacturer-supplied cover and edge allowances; usable width must be positive. No wind/fixing design. 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.