Examples
Examples
Try the starting example
- JSON Formed faces [ID,width m,height m,count]
- [["side",0.3,3,10],["soffit",0.4,4,5]]
- Usable panel area (m²)
- 2
- Supplied purchase waste fraction
- 0.1
- Contact area (m²)
- 17
- Panel area purchase basis (m²)
- 18.7
- Area-equivalent panels
- 10
Try another scenario
- JSON Formed faces [ID,width m,height m,count]
- [["side",0.3,4,10],["soffit",0.4,4,5]]
- Usable panel area (m²)
- 2
- Supplied purchase waste fraction
- 0.1
- Contact area (m²)
- 20
- Panel area purchase basis (m²)
- 22
- Area-equivalent panels
- 11
Calculation method
Calculation method
Contact area (m²)
sum(r[1]*r[2]*r[3] for r in a)
Panel area purchase basis (m²)
sum(r[1]*r[2]*r[3] for r in a)*(1+c)
Area-equivalent panels
ceil(sum(r[1]*r[2]*r[3] for r in a)*(1+c)/b)
Symbols and units
- a
- JSON Formed faces [ID,width m,height m,count]
- b
- Usable panel area (m²)
- c
- Supplied purchase waste fraction
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sum(list) adds all entries in the list.
Assumptions & limits
Assumptions & limits
- Explicit formed rectangular faces only, counted once. Panel count is area-equivalent, not a physical cutting/structural formwork 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.