Examples
Examples
Try the starting example
- Host board thickness (mm)
- 18
- Mating board thickness (mm)
- 12
- Chosen overlap into host (mm)
- 6
- Side-to-side fit clearance in total (mm)
- 0.2
- Rabbet seat width (mm)
- 12.2
- Rabbet depth (mm)
- 6
- Host thickness remaining (mm)
- 12
Try another scenario
- Host board thickness (mm)
- 20
- Mating board thickness (mm)
- 10
- Chosen overlap into host (mm)
- 5
- Side-to-side fit clearance in total (mm)
- 0.5
- Rabbet seat width (mm)
- 10.5
- Rabbet depth (mm)
- 5
- Host thickness remaining (mm)
- 15
Calculation method
Calculation method
Rabbet seat width (mm)
Mating board thickness + total fit clearance.
Rabbet depth (mm)
The user-chosen overlap into the host board.
Host thickness remaining (mm)
Host thickness − chosen overlap.
Symbols and units
- a
- Host board thickness (mm)
- b
- Mating board thickness (mm)
- c
- Chosen overlap into host (mm)
- d
- Side-to-side fit clearance in total (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
- A rectangular edge-seat geometry under your selected overlap and total side clearance. No strength, fastening, tooling, glue or safe-machining recommendation is made. The user must verify the joint design.
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.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.