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Revit Family Parameter Usage Guide
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- Basic Concepts
- Revit families enable parametric control of size, information, and standards
- Parameters can be used to label dimensions and control ladder dimensions
- OSHA requires safety cages for ladders over 20 feet height
- Implementation Steps
- Create ladder family with height and width parameters
- Calculate number of rungs using formula: ladder height divided by spacing
- Create array for rungs, lock last rung to reference plane
- Define visibility parameter for cage control
- Create conditional parameter for cage availability based on height
- Associate main family parameter with child parameter
- Benefits
- Parameters enable quick design revisions and standard enforcement
- Family parameters maintain similar appearance across designs
- Parameters can be used for both drawing and design standards