Deck Safety Checklist

Decks are popular outdoor spaces for relaxation and entertainment, but they require regular maintenance to remain safe. According to the Consumer Product Safety Commission (CPSC), hundreds of people are injured each year because of structural failures or collapses of decks, porches, and balconies. Our comprehensive deck safety checklist will help you identify potential hazards, maintain your deck’s integrity, and secure your outdoor living area for you and your guests.

DIY Deck Safety Checklist

Regular self-inspections can help you catch potential issues early. First, walk around your deck, looking for obvious signs of damage or wear. Gently push against railings to check for stability. Walk across the deck, noting any unusual movement or sounds. 

If you notice any of the significant issues listed below during your inspection, it’s time to call a professional. Signs that warrant immediate expert attention include large cracks, extensive rot, loose connections, or any movement in the deck’s attachment to the house. Do not ignore small signs of trouble, as they can escalate into major repairs if left unaddressed.

Look for Common Signs of Deck Deterioration

To maintain a safe outdoor space, it’s important to recognize the early signs of deck deterioration, including:

• Rusted fasteners and connectors: Inspect the underside of your deck for signs of rust on fasteners and connectors, as it can weaken these connections and lead to structural failures. Frank Lesh, executive director of the American Society of Home Inspectors (ASHI), advises, “Even good-quality galvanized steel will rust. If you see rust or something looks loose, you need to have an inspector look at it.” 
• Cracks in wood: Minor cracking is normal as wood ages, but cracks that are growing larger, appear around fasteners, or are in the middle of deck joists can point to serious issues. 
• Rotted or damaged boards: Even small areas of rot can compromise the integrity of your deck, which is often caused by persistent moisture. Lesh warns, “If you see rotted wood, there’s something wrong. It’s like looking at bald tires—if one part looks great but there’s one bad spot, that’s a problem.”

Identify Structural Issues

Structural problems can lead to serious injuries or damage to the home if gone unchecked. Here are key areas to examine:

• Deck-to-house attachment problems: Lesh advises, “There should be no movement. It should be in the same position as when it was built.” If you notice any give or shifting when you step onto the deck, it’s time to call a professional inspector. 
• Loose railings and balusters: Check both deck railings and stair railings for stability. Deck railings should be sturdy enough to withstand about 200 pounds of lateral force. While they should have a slight give when leaned against, any swaying or wobbling is cause for concern. 
• Unstable stairs: The steps should be firmly attached and level. Any wobbling or unevenness can lead to trips and falls, especially for elderly visitors or children. Treads need to be durable.

Inspect for Pest and Environmental Damage

Environmental factors and pests can significantly impact your deck’s safety and longevity. Look for:

• Bug infestations: Modern decks are typically built with insect-resistant treated lumber, but older decks may be vulnerable to carpenter ants or termites. Pests can hollow out wood and weaken structural components over time. Pay special attention to areas where the deck attaches to the house, as these can be entry points for pests.
• Mold and mildew growth: A slight green tinge in shaded areas is normal and can be cleaned with a bleach-and-water solution. However, more substantial growths, such as mushrooms or fuzzy mold, require immediate attention. Lesh cautions, “Mold eats away at the structure. What you see on the surface could be the tip of the iceberg.”
• Weather-related wear and tear: Exposure to sun, rain, and snow can cause significant damage over time. Look for signs of weathering such as splintering, warping, or excessive fading.

Review Safety Features

Your deck’s overall design can affect safety and usability. Double-check these aspects of your deck often:

• Proper railing height and strength: Deck railings should meet local building codes for height and strength. Generally, railings should be at least 36 inches high and able to withstand significant lateral force. 
• Appropriate stair design: Stairs should have proper rise and run measurements. Handrails need to be securely fastened and easy to grasp. Consider using non-slip materials on treads
• Adequate lighting for nighttime use: Install lighting along stairs, pathways, and key areas of the deck to prevent trips and falls in low-light conditions. Solar-powered lights are an eco-friendly option that require minimal maintenance.

Professional Deck Inspection Process

While regular DIY inspections are important, professional inspections provide a more thorough assessment of your deck’s safety. Professional inspectors bring specialized tools and knowledge to their assessments. 

Professional inspectors examine all aspects of your deck, including its attachment to the house, structural supports, decking boards, railings, and stairs. They look for code violations, structural weaknesses, and potential safety hazards. 

Lesh recommends having your deck professionally inspected every few years. “Your deck is in weather all year long, and there’s no protection. There’s no ‘check engine light’ on a deck,” he explains. Routine professional assessments can catch problems before they become serious, ensuring that your deck remains a safe place for relaxation and entertainment.

After a professional inspection, you’ll receive a detailed report outlining any issues found and recommendations for repairs or improvements. Use this report to prioritize maintenance tasks. These reports can also guide long-term planning and budgeting for deck care.

Maintenance Tips To Extend Deck Life

Proper maintenance can significantly extend the life of your deck and keep it safe for years to come. Keep these tips in mind:

Clean Your Deck Regularly

Clean your deck regularly to prevent the buildup of dirt, debris, and organic matter that can lead to mold and rot. Use a mild detergent and soft brush for general cleaning. Avoid using harsh chemicals that can damage the wood. Lesh advises against power-washing, as it can damage wood fibers.

Stain and Seal Your Deck 

Lesh recommends staining your deck at least every few years to prevent cracks and other problems. Use gentle cleaning methods before applying a protective stain or sealant. Proper sealing creates a barrier against moisture and UV rays, preserving the wood’s appearance and strength.

Address Minor Issues Promptly

Don’t wait to address small problems. Replace loose boards, tighten fasteners, and repair small areas of damage promptly to prevent them from becoming larger, more expensive issues. Regular attention to minor repairs can save you from extensive and costly overhauls down the line.

Our Conclusion

A well-maintained deck can provide years of enjoyment and add value to your home. Regular inspections, prompt repairs, and proper maintenance help ensure that your deck remains safe and structurally sound. By following this deck safety checklist and addressing issues promptly, you can significantly reduce the risk of accidents and extend the life of your outdoor living space. When in doubt about your deck’s safety, it’s always best to consult with a professional inspector or contractor.