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Sign up for access to easy and accurate tools to save time reviewing load calcs and single line diagrams.
Inspectors and instructors
get Kopperfield free
Sign up for access to easy and accurate tools to save time reviewing load calcs and single line diagrams.
Save time with smarter tools
Review docs in one place
Receive load calcs and single line diagrams from students and contractors. Scan a QR code and store all documents in one place.
Confirm load calculations
Save time with our residential load calculator. Quickly and accurately check calculations from students and contractors.
Verify single line diagrams
Review single line diagrams and site plans for any scenario. Provide faster comments on drawings from students and contractors.
Load calculations
Create and check load calcs quickly
Create and confirm load calculations with logic based on Part IV of the NEC (optional method 220.82 & 220.83). Automatically pull property data and create professional PDF reports.
Single line diagrams
Review site plans and single line diagrams
Save time reviewing projects with easy drawing tools for single line diagrams. Customize a template from our library, update the drawing, and generate a shareable PDF.
Library of all completed
calculations
Library of all completed calculations
Load calculator demo
Hear it from a pro
See how Kevin from Bella Electric San Diego uses Kopperfield design tools to save time and prepare for inspections.
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