In this report
Overview
CR Quick Recommendations
Ratings
How to choose
Types
Signs of an unsafe deck
Beyond nails: New fasteners
"Toxic" decking?
July 2008
send to a friend printable version
Critical deck checks
A man staining a deck
 
If your decking has cracks, looks dirty, or suffers from mildew, it's time to refinish your deck. But signs of an unsafe deck are often less obvious. If your deck was built before 2004, it's probably made of lumber treated with chromated copper arsenate (available to subscribers). Regular refinishing helps seal in the toxic arsenic that CCA decking contains. But if the finish is flaking, we suggest hiring a pro who's equipped to safely remove the old finish, dust, and debris and then refinish it. Here are the other critical safety checks to make on any deck:

  • Be sure the railings and banisters aren't loose. Push on them; they shouldn't wiggle as you push.

  • Check that all of the steps are securely anchored to the risers by resting your weight all along their width.

  • Check the structure. Look for rot and insect damage beneath the deck platform; if you find any problems, have the deck checked and repaired by a professional.

  • Help prevent mildew-and the slip hazard it causes-by regularly clearing away leaves and other yard waste from beneath and around the deck. (Read our blog post on this topic.)

  • Inspect all nails, screws, and bolts. Hammer down nails and tighten screws and bolts as needed.

  • Safeguard children and pets by keeping the spaces between the railing balustrades to 4 inches or less.

  • Prevent fires by putting a nonflammable pad between a grill and the decking, and keeping heaters and fire pits from contacting the deck. Also inspect outdoor lighting and replace any frayed cords or other damaged components.

For more information on keeping your deck safe and making it look its best, read "Protect your investment: Decks."