Home Trades & Electrical Suite
Home Trades & Electrical Tools & Calculators
Interactive circuit simulators, wiring diagrams, and construction tools. Practical tools designed for everyday technical and professional workflows.
tradesUpdated 2026-10-26
3-Way & 4-Way Switch Circuit Wiring Interactive Simulator
Interactive educational circuit simulator demonstrating how 3-way and 4-way switches, traveler conductors, and common terminals operate in simplified AC circuits.
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tradesUpdated 2026-10-26
Stair Stringer Calculator & 2D Framing Visualizer
Calculate exact stair risers, tread runs, stringer cut angles, 2x12 lumber stock, and bottom riser tread thickness deductions with IRC and IBC code compliance checks.
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tradesUpdated 2026-10-27
Home EV Charger & Electrical Panel Load Calculator (NEC 220)
Calculate residential service panel capacity for Level 2 EV charging under NEC Article 220.82. Verify 100A, 150A, or 200A panel headroom, test smart splitter EVEMS bypasses, and generate 1-click permit worksheets.
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