Import and mark up
Bring in plan PDFs, then draw panels, junctions, endpoints, and raceways directly over the sheet.
Commercial electrical planning
Plan commercial electrical homeruns faster.
Import a floor plan, sketch raceway routes, assign circuits, and export preliminary conductor, voltage-drop, and raceway-fill reports.
LP-1
JB
Office
Conference
Voltage drop
2.21%
Raceway fill
20.8%
The problem
Electrical homerun planning still jumps between drawings, spreadsheets, and calculators.
ZapSketch keeps the working sketch, circuit schedule, and preliminary electrical feedback together so teams can iterate faster before final review.
How it works
From floor plan to preliminary report.
Assign circuits
Build panel schedules, assign endpoints, and keep routed home-run paths connected to circuit data.
Review outputs
Check preliminary conductor sizing, voltage drop, EGC, raceway fill, and export marked plans and reports.
Value
Built for the messy middle of commercial planning.
- Import plan PDFs
- Draw panels, junctions, endpoints, and raceways
- Assign endpoints to circuits
- Check preliminary conductor sizing, voltage drop, EGC, and raceway fill
- Export marked plans and reports
- Stay local-first: project files and PDFs remain in the browser unless exported or downloaded
Free lets you test the workflow.
Draw plans, run checks, save locally, and export watermarked PDFs.
Pro unlocks commercial deliverables.
Remove watermarks and export unredacted calculation reports and full raceway pull schedules.
Local-first privacy
Your plans stay in the browser.
ZapSketch does not upload project PDFs or .zapsketch packages for cloud storage. The billing backend stores entitlement records, not plan data.
ZapSketch is a preliminary design aid. Confirm field conditions, adopted code edition, and AHJ requirements.