Idaho adopts the International Residential Code statewide under Idaho Code 39-4109, which requires residential swimming pools, spas, and hot tubs to be enclosed by a barrier at least 48 inches high with self-closing, self-latching gates.
Idaho Code 39-4109 designates the International Residential Code (IRC) as the state residential building code. IRC Appendix G and Section AG105 require residential pools, spas, and hot tubs deeper than 24 inches to be enclosed by a barrier at least 48 inches high measured from the outside. Openings cannot allow a 4-inch sphere to pass, and gates must be self-closing and self-latching, opening outward, with latches at least 54 inches above the ground. Local jurisdictions adopting building codes under Idaho Code 39-4116 must enforce standards no less stringent than state requirements.
Building a pool without a compliant barrier can result in stop-work orders, denial of certificate of occupancy, civil fines, and personal injury liability. Local enforcement varies but state minimums apply.
See how Post Falls's pool barriers rules stack up against other locations.
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