Rectangular, circular and flexible ducts
Routes and fittings are organized by network, with each component’s dimensions and properties.
CAD ductwork design and quantity takeoffs
From the duct route to sheet metal, insulation and duct quantities, Duct Design ties takeoffs to the components in the drawing. It is in development and is not yet publicly available.
Duct networks and quantities in the drawing
The development version organizes ductwork into networks and uses saved component properties to prepare quantity takeoffs.
Takeoffs by network
Quantities use drawing data and the material and insulation settings assigned to the components.
Component editing
Changes to supported dimensions and properties update the linked quantity tables.
Design workflow
From duct network to quantity takeoff
The development workflow keeps drawing, review and quantities within the same CAD environment.
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Set up the network
Choose network settings, including materials, insulation and drawing parameters.
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Draw and edit
Place ducts and fittings, then use the available editors to adjust component dimensions and properties.
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Review and export
Review quantities in drawing tables and export a CSV for further work.
Takeoff outputs
What the quantities include
Takeoffs keep material categories distinct according to each component’s type and settings.
- Sheet metal and insulation
- Fabricated sheet-metal area and weight where applicable, together with the specified insulation.
- Circular and flexible ducts
- Circular duct lengths and piece counts, plus flexible duct lengths calculated from their routes.
- Drawing tables and CSV
- Totals and item details for review in the DWG and further work in a spreadsheet through CSV.
Compatibility and availability
Compatibility with specific AutoCAD LT and GstarCAD versions is still being checked. Recorded tests cover individual features; the final supported-version list is not yet complete.
MechLedger Duct Design has no public download package. Installation and release details will be added once the relevant checks are complete.
Project organization on your phone
For client details, calculations, materials, photos and reports on your phone, explore the separate MechLedger HVAC app.