Wood Deck: lifespan, maintenance and replacement

Typical lifespan: 15–25 years (about 20 years).

Maintenance schedule

• Sweep and clear debris — Weekly (in season)
• Power wash — Annually
• Apply stain or sealant — Every 2–3 years
• Inspect for loose boards and nails — Annually
• Check ledger board attachment — Annually

Signs it needs replacing

• Widespread rot or soft spots
• Structural posts are deteriorating
• Boards splinter excessively despite sanding
• Railing feels wobbly or unstable
• Mold/mildew growing deep into wood grain
• Fasteners pulling out of weakened wood

Tips

Composite decking costs more upfront but lasts 25–50 years with minimal maintenance.