ElectricalDesignResidential
Residential Electrical Design
$4.99 · Designed for iPad. Not verified for macOS.
ElectricalDesignResidential is a professional-grade residential electrical load calculation tool built for electricians, engineers, and contractors. Perform complete service entrance load calculations per NEC Article 220 — right from your iPhone.
Enter your home's square footage, rooms, and appliances, and LoadCalc Pro instantly determines your total calculated load, service size, conductor sizing, and full panel layout. Every calculation follows the NEC Standard Method with proper demand factors applied automatically.
What You Get:
A detailed 21-step load calculation worksheet showing every intermediate value — general lighting, small appliance circuits, laundry loads, demand factors, range and dryer calculations, HVAC non-coincident load selection, fixed appliance demand, motor load additions, and final service sizing. The same worksheet format used on professional NEC calculation forms.
A visual electrical panel layout diagram with color-coded breakers organized by circuit type. A complete circuit schedule with breaker sizes, wire gauges, and voltage ratings. Service entrance conductor, neutral, and grounding electrode conductor sizing per NEC Tables 310.16 and 250.66.
Export everything as a polished PDF report — perfect for permit applications, client presentations, or job documentation.
Key Features:
NEC Article 220 Standard Method calculations, 220.12 general lighting at 3 VA/sq ft, 220.42 demand factors, 220.52 small appliance and laundry circuits, 220.53 fixed appliance demand, 220.54 dryer loads, 220.55 range/cooktop demand (Table 220.55), 220.60 non-coincident HVAC load selection, 430 motor circuit sizing at 125%, conductor sizing per Table 310.16, grounding per Table 250.66, visual panel layout diagram, PDF export, and a step-by-step calculation worksheet for full transparency.
Keywords: electrical, load calculation, NEC, residential, panel, breaker, circuit, service entrance, conductor, Article 220
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The developer, Yuhsiu Lai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Yuhsiu Lai
- Size
- 4.8 MB
- Category
- Productivity
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 iTech
