Examples
Examples
Try the starting example
- Opening clear width (mm)
- 1200
- Left bearing length (mm)
- 150
- Right bearing length (mm)
- 150
- Available lintel length (mm)
- 1500
- Required overall length (mm)
- 1500
- Available length margin (mm)
- 0
- Average supplied bearing (mm)
- 150
Try another scenario
- Opening clear width (mm)
- 1201
- Left bearing length (mm)
- 150
- Right bearing length (mm)
- 150
- Available lintel length (mm)
- 1500
- Required overall length (mm)
- 1501
- Available length margin (mm)
- -1
- Average supplied bearing (mm)
- 150
Calculation method
Calculation method
Required overall length (mm)
Required length = clear opening + both supplied bearings; compare with available length.
Available length margin (mm)
Required length = clear opening + both supplied bearings; compare with available length.
Average supplied bearing (mm)
Required length = clear opening + both supplied bearings; compare with available length.
Symbols and units
- a
- Opening clear width (mm)
- b
- Left bearing length (mm)
- c
- Right bearing length (mm)
- d
- Available lintel length (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
- Length arithmetic only; does not validate bearing resistance, deflection or lintel selection. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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.