Calculation tools
These free online calculation tools are designed to handle multiple purposes and needs. These tools can help you anything from selecting the right window actuator to calculate the necessary opening area based on your project specific needs. Do you need more help with the calculations for your building design? Contact us for guidance.
Contact a Specialist- All
- Window actuator
- Geometric opening area
- Opening angle
- Stroke length
- Pull & push forces
- Mounting drawings
- Ventilation rate
- Design verification
- Effective opening area
- Number of openings
- Show more filters

Find your opening areas and best actuator
This tool will help you find just the right window actuator, as well as the geometric opening area. You can also download product data and specification documents through this tool.
This tool will help you get
Try the ActuatorFinder
Calculate the ventilation rate for your project
Verify the ventilation rate of your design with this calculator. Based on your input, it will calculate an estimate of the air change rate in a room at the least favorable wind conditions.
This tool will help you get
Try the Air Change Rate calculator
Calculate an estimation of the required opening area for natural ventilation
With a few minutes this simple tool will get you an estimate of the required opening area for natural ventilation for a specific room. The calculations are based on your ventilation/cooling demand.
This tool will help you get
Try the Dimensioning toolContact
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