May is National Deck Safety Month and millions of homeowners will step back onto their decks, ready to enjoy long evenings, summer cookouts, and quiet mornings sipping coffee. But what lies beneath those boards may tell a very different story.
As temperatures rise, so do the risks, especially for aging decks. Cracked joists, corroded fasteners, hidden rot, and structural fatigue can quietly turn an outdoor retreat into a serious safety hazard. With 30 million decks in the U.S. considered past their safe lifespan, according to the North American Deck and Railing Association, the need for awareness has never been greater.
The following are the most common and most overlooked deck safety issues:
Moisture Management: The Hidden Key to Deck Safety
Whether it’s rain, snowmelt or summer humidity, moisture is one of the most persistent threats to a deck’s longevity. Without proper airflow and drainage, it can lead to mold, rot and weakening of the structure, even when the deck still looks fine from the surface.
Contractors across the country emphasize the importance of elevated framing, open-board spacing and moisture-resistant materials. Composite options, like mineral-based decking, offer added protection by resisting water absorption and minimizing expansion, swelling and decay.
“A deck that breathes is a deck that lasts,” says Blake Carter, owner of California Deck Pros based in San Diego, a member of Deckorators‘ Elite Pro Program. “Good ventilation and the right materials do more to preserve safety than most homeowners realize.”
Design with Durability in Mind
Deck safety starts long before the first board is laid. Across climates, builders are prioritizing smarter design choices, such as better drainage systems, slip-resistant surfaces, corrosion-resistant fasteners and hidden hardware that prevents water intrusion at key connection points.
Today’s best practices aren’t just about passing inspection. They’re about future-proofing decks against the wear of time, use and weather. Long-term performance depends on building a system that’s resilient from the foundation up.
“It’s not just about code. It’s about climate, conditions and how the deck will actually live over time,” says Jason Varney, founder of Dock & Deck in Knoxville, Tenn., and a member of Deckorators’ Elite Pro Program.
Early Signs, Real Risks
Most deck failures don’t happen overnight. The warning signs: A soft stair, wobbly railing, discolored fasteners or warped boards can appear long before a real issue becomes visible. That’s why regular inspections are critical, especially for older decks or those exposed to extreme seasonal swings.
Contractors recommend an annual checkup for wood decks and every two to three years for composite structures. A 30-minute walk-through by a professional can catch potential hazards early and often prevent far more costly repairs down the road.
“If something doesn’t feel right underfoot, it probably isn’t,” says Brenton Giliam, co-owner of FWD Construction, a member of Deckorators’ Elite Pro Program. “Trust your instincts and don’t wait until it’s too late.”
Helping Homeowners Make Smarter Choices
“For builders, remodelers and inspectors alike, Deck Safety Month is a timely opportunity to guide homeowners toward better decisions, whether they’re maintaining an aging deck, planning a new build or considering an upgrade.
That means educating clients on why details matter, from flashing and footing depth to the type of fasteners used and how the deck sheds water. “These are the decisions that keep outdoor spaces strong, safe and ready for everyday life,” says Hendricks.
What You Can Do
These contractors have seen firsthand how small design changes can have a big impact on long-term safety. From proper ventilation and moisture management to choosing the right materials, the insights from these seasoned professionals emphasize proactive steps homeowners can take to prevent structural issues before they even appear. Simple but effective solutions, like selecting the right fasteners or maintaining proper drainage, can make a world of difference in preventing costly repairs and safety hazards down the road.
“For homeowners, a safe, long-lasting deck starts with strategic decisions from the beginning,” says Hendricks.
