Inspect your deck before heavy seasonal use, after severe weather, and any time it feels loose, bouncy, or soft underfoot. Homeowners can spot warning signs, but structural concerns need a qualified deck contractor, inspector, or engineer.
Quick deck checklist
- Railings don't wobble.
- Stairs feel solid and even.
- Deck boards aren't soft, cracked, or lifting.
- Fasteners aren't missing, rusted through, or backing out.
- The deck isn't pulling away from the house.
- Posts and framing don't show obvious rot.
Start with movement
Walk the deck slowly. Feel for bounce, sway, loose boards, or stairs that shift. Push railings gently. A railing that moves under light pressure should not be trusted during a party.
Look at the connection to the house
The ledger area is one of the most important parts of an attached deck. Look for gaps between the deck and house, water stains, missing flashing, loose fasteners, or wood that looks crushed or rotten. Don't remove structural parts to inspect casually.
Check wood and fasteners
- Probe suspicious soft spots with light pressure.
- Look for mushrooms, rot, or deep checking.
- Watch for nails or screws backing out.
- Check stair stringers and handrails.
- Look underneath if you can do it safely from the ground.
When to stop using the deck
Stop using the deck and call a pro if it pulls away from the house, posts shift, railings are loose, stairs move, framing is rotten, or the deck feels unstable. Cosmetic stain can wait. Structural uncertainty can't.
Good maintenance rhythm
- Inspect before spring and summer use, after major storms, before large gatherings, and before buying or selling a home.