HVAC takeoff software, free in your browser
Count equipment and air devices, measure ductwork and piping runs to scale, and roll up quantities for your mechanical bid, all on any PDF plan set. TRACEBUILD reads the drawing's own duct tags so takeoff goes faster, with nothing to install.
Free while TRACEBUILD Lite is in early access. No download, no credit card.
What you can take off
- Ductwork runs for supply, return, and exhaust, measured to scale.
- Equipment counts for rooftop units, air handlers, VAV boxes, fan coils, and split systems.
- Diffusers, registers, and grilles counted by type.
- Hydronic and refrigerant piping measured as linear lengths.
- Duct grouped by service tag such as 14x12 SA, read from the drawing's own labels.
- Quantities exported to CSV and Excel, ready for your estimate.
How HVAC takeoff works
- Open your mechanical drawings. Drag the M-sheets into the browser. Nothing uploads, nothing installs.
- Set the scale. Click a known dimension and type its length, or pick a standard scale. Every measurement then reads in real feet.
- Count and measure. Drop counts on equipment and diffusers and trace duct runs. Detect Runs reads duct tags like 14x12 SA to identify each run's size and group them by system.
- Export. Send equipment counts and duct and pipe lengths to Excel or CSV for your bid.
Built for mechanical estimating
Count equipment fast
The count tool tallies units, boxes, and air devices with running subtotals by type. AI auto-counting of repeated symbols is coming in the Pro app.
Duct read by service tag
Detect Runs reads the drawing's own tags (like 14x12 SA) to identify each run's size and group duct into supply, return, and exhaust classes.
Works on any PDF
Vector or scanned mechanical sheets, with text search and OCR to find equipment schedules and notes across the set.
Estimate-ready export
Clean CSV and Excel output that drops straight into the way you already bid mechanical work.
Common questions
Can I take off ductwork by size?
Yes. Measure supply, return, and exhaust duct runs as linear lengths to scale, and Detect Runs reads the drawing's own duct tags (such as 14x12 SA) to identify each run's size and group duct into supply, return, and exhaust classes.
Can I count HVAC equipment and diffusers?
Yes. The count tool tallies rooftop units, air handlers, VAV boxes, fan coils, and split systems, plus diffusers, registers, and grilles, with running subtotals by type. AI auto-counting of repeated symbols is coming in the Pro app.
Is TRACEBUILD really free for HVAC takeoff?
TRACEBUILD Lite runs free in the browser during early access, with markup, measurement, and takeoff included. A Windows app, Pro, adds pricing and on-device AI and is coming soon.
Can I export my HVAC takeoff to Excel?
Yes. Equipment counts and duct and pipe lengths export to CSV and Excel so they drop straight into your estimate.