Duct Schedule
The Duct Schedule report documents the ductwork in your HVAC systems, including sizes, materials, and insulation requirements.
Duct Sections
Section titled “Duct Sections”Main Ducts
Section titled “Main Ducts”Primary supply and return ducts:
- Section identifier
- Size (width x height or diameter)
- Airflow (CFM)
- Velocity (FPM)
- Length
Branch Ducts
Section titled “Branch Ducts”Secondary distribution:
- Branch identifier
- Size
- Airflow
- Connection point
Runouts
Section titled “Runouts”Final connections to terminals:
- Terminal served
- Size
- Airflow
Duct Properties
Section titled “Duct Properties”Sizing Data
Section titled “Sizing Data”For each section:
- Calculated size
- Actual size (rounded)
- Velocity
- Pressure drop
Material
Section titled “Material”Duct construction:
- Sheet metal gauge
- Flexible duct type
- Ductboard (if applicable)
Insulation
Section titled “Insulation”Thermal and acoustic:
- R-value
- Thickness
- Interior/exterior
Fittings
Section titled “Fittings”Fitting Schedule
Section titled “Fitting Schedule”List of all fittings:
- Elbows (type and angle)
- Tees and wyes
- Transitions
- Offsets
Fitting Losses
Section titled “Fitting Losses”Pressure loss coefficients:
- C-factor for each fitting
- Velocity pressure method
- Included in total pressure
Pressure Summary
Section titled “Pressure Summary”Critical Path
Section titled “Critical Path”Highest pressure drop path:
- Path identification
- Total pressure drop
- Fan sizing requirement
Pressure Profile
Section titled “Pressure Profile”Pressure at key points:
- Leaving fan
- At branches
- At terminals
Schedule Format
Section titled “Schedule Format”By System
Section titled “By System”Organized by HVAC system:
- All ducts for each system
- System-level totals
- Critical path highlighted
By Section
Section titled “By Section”Detailed section list:
- Every duct segment
- All fittings
- Pressure data
Export Options
Section titled “Export Options”PDF Schedule
Section titled “PDF Schedule”Professional duct schedule:
- Suitable for bid documents
- All sizing data
- Fitting counts
CSV Export
Section titled “CSV Export”For takeoff and estimation:
- Duct quantities
- Fitting quantities
- Material summary
Verification
Section titled “Verification”Review the duct schedule for:
-
Reasonable velocities
- Main ducts: 1500-2000 FPM
- Branch ducts: 800-1200 FPM
- Noise-sensitive: < 800 FPM
-
Pressure drop
- Within fan capability
- Balanced across branches
-
Size transitions
- Gradual reductions
- No abrupt changes
-
Insulation
- All supply ducts insulated
- Outdoor air ducts insulated