Trepedia, developed by Trebisoft, focuses exclusively on parametric stair design. Version runs as a standalone application or integrates with AutoCAD as an add-on. The software eliminates manual trigonometry by automatically calculating rise, run, tread depth, headroom clearance, and landing dimensions.
Key Features
Trepedia includes a focused set of automation tools for stair design:
- Automatic stair calculation: Input basic parameters (total rise, tread count, stringer type); the software generates full geometry.
- Multiple stair types:
- Straight stairs
- L-shaped (quarter-turn) stairs
- U-shaped (half-turn) stairs
- Winder stairs (with angled treads)
- Spiral and helical stairs (basic support)
- Open, closed, and mono stringers with automatic notch generation.
- Handrail and baluster layout – automatic spacing based on local building codes (e.g., IRC or IBC).
- Material optimization: Calculates board feet or linear meters for lumber, steel, or concrete forms.
- 2D plan, elevation, and section views – fully annotated.
- DXF export for CNC machines or CAD editing.
- Custom tread and riser materials (wood, stone, metal, glass).
- The interface uses a wizard-style workflow, guiding users from input to output in under five steps.
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