Electrical Panel Schedule Builder Pro — NEC 2023 Compliant | Offline | AutoCAD XLSX Export
NEC Article 220 calculations — automatic Phase A, B, and C loads balanced per NEC 3-phase bus rotation. Calc amps and target breaker size calculated for every panel. No manual math. No formula cells to break.MDP + multiple subpanels in one project Configure your Main Distribution Panel first, then add subpanels. Connect subpanels via subfeed circuits with wire size and conduit specs. MDP totals aggregate from all connected subpanels automatically.Single-line riser diagram included Auto-generated SVG riser from your panel data — utility transformer, meter, C/T, MDP, and all subpanels with feed wire specs. Symbol key included. Formatted for the E-sheets of your drawing set.XLSX export — AutoCAD compatible Plain-text values, no formulas. Intentionally. AutoCAD's TABLE import requires unformatted values — formatted cells and Excel formulas break CAD imports. This export is optimized for that workflow.How Panel Schedule Builder comparesManual Excel / spreadsheet Hours of formatting, wrong for CDsRevit MEP / full BIM $2,000–$8,000/yr · months of setupGeneric form builders No NEC logic, no phase balancingBuilt on NEC, not around it. Phase rotation, continuous load warnings at 80%.If your team is still producing electrical panel schedules in Excel — reformatting headers, calculating phase loads by hand, and rebuilding the same layout from scratch every project — this app was built to fix that. The Panel Schedule Builder is a browser-based tool that produces NEC 2023–compliant panel schedules with automatic 3-phase load balancing, live amperage calculations, and print-ready output formatted for your CD set. Available immediately — no account, no installation required.
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