A 3-room 2-living room 2-bathroom house typically requires 10,000-15,000 feet of electrical wiring. This estimate includes lighting circuits, outlet circuits, and dedicated circuits for appliances and fixtures. The total depends on square footage, room layout, and local building codes.

The electrical wiring needs are determined by the number of circuits required to serve all fixtures and appliances. A standard 3-bedroom house (similar in scope) averages 12,000-18,000 feet of Romex cable, according to the National Electrical Code (NEC) and industry benchmarks. Each room generally needs 1-2 lighting circuits (each 100-150 feet) and 2-3 outlet circuits (each 50-100 feet). Bathrooms require dedicated GFCI outlets, adding 30-50 feet per bathroom. Living rooms and bedrooms may need additional circuits for ceiling fans, smart devices, or HVAC systems.

Data from the U.S. Department of Energy indicates that a 2,000-square-foot home uses approximately 10,000-12,000 feet of wiring, while larger homes exceed 15,000 feet. This accounts for 20-30 lighting fixtures, 50-70 outlets, and 5-8 dedicated circuits. The NEC mandates a minimum 100-amp service entrance, with branch circuits sized to handle load calculations. For example, a 200-amp service with 20 circuits (each 100 feet) totals 2,000 feet, plus additional wiring for fixtures and outlets.

Local codes may require AFCI/GFCI protection in living areas and GFCI outlets in bathrooms, increasing wire length by 10-15%. Material choice (14/2 or 12/2 Romex) affects weight and cost but not total footage. A professional electrician typically adds 10-20% extra wire for future expansions or corrections. Thus, 10,000-15,000 feet balances compliance, functionality, and scalability for most mid-sized homes.

The estimate aligns with industry standards, ensuring adequate capacity for lighting, outlets, and appliances while adhering to safety regulations. Variations arise from unique layouts or high-tech systems, but the range remains applicable for typical installations.