Lots of decks in New Castle County were built in the 1980s through the early 2000s and are reaching the end of their life. Surface boards are the obvious problem, but the parts that matter for safety are underneath.
Safety checklist
- Ledger connection: the board that attaches the deck to the house should be bolted or lagged (not nailed) and flashed. A rotted or nailed ledger is one of the leading causes of deck collapse.
- Railings: posts should not move when you push on them. Modern codes generally require guards on decks more than 30 inches above grade.
- Joists and beams: probe with a screwdriver. Soft wood, especially at the ends, means rot.
- Footings and posts: look for posts buried in soil, sinking footings, or leaning supports.
- Corroded hardware: joist hangers and fasteners corrode over time, especially with treated lumber.
Repair or rebuild?
If the framing is sound, replacing decking and railings is a good value. Many homeowners go to composite boards at this stage. If the ledger, joists, or footings are failing, a rebuild is usually safer and not much more expensive than piecemeal repairs. Rebuilds and new decks generally require a permit and inspections, and the contractor should pull it.
Materials
Pressure-treated pine is the most affordable; it needs cleaning and sealing every couple of years. Composite and PVC boards cost more up front, need less maintenance, and typically require different joist spacing. Ask about hidden fasteners and whether the framing meets the board manufacturer's spacing requirements.