An advanced, decision-focused guide that walks homeowners through a complete deck-replacement roadmap tailored to the Colorado Front Range (Littleton, Centennial, Parker, Highlands Ranch, Golden, Aurora, Castle Rock). The article will synthesize structural engineering principles (ledger-to-rim connections, lateral-load ties, engineered beam sizing, joist spacing for composites), local permitting and code constraints (including typical Front Range snow-load design ranges), and practical demolition sequencing to preserve undamaged elements and minimize homeowner disruption. It will include a forensic inspection protocol (moisture mapping, fastener corrosion assessment, footing and soil evaluation), a clear repair-vs-replace decision matrix, foundation and frost-depth footing strategies, flashing and moisture-control details unique to freeze–thaw cycles, material life-cycle and cost-driver analysis (pressure-treated lumber, capped composites, hidden-fastener systems), expected timelines and budget benchmarks, and a contractor-selection checklist and permit/insurance considerations specific to Front Range jurisdictions. The result: a single, actionable blueprint enabling high-intent owners to evaluate risks, compare engineered replacement options, secure compliant permits, and forecast accurate costs and schedules before committing to a full deck rebuild.