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The overhang, or nosing, of deck steps is another area that will be covered in building code requirements. The noses on your deck steps should have a minimum overhang of ¾ inch. For safety, usability, and code compliance, the nosing of deck steps should not extend past 1¼ inches.

Homeowners should build their floating decks at least 18 inches off the ground. Having it at this height will allow for better airflow underneath and help prevent moisture-related problems like warping or rot. That being said, local guidelines for deck heights may vary depending on where you live.

The proper height for a stair riser or deck step is between four and seven inches, with seven inches often considered the most comfortable. Building your stairs to this height ensures a strain-free step position and minimizes the risk of trip and fall injuries. For optimal safety and comfort, especially on deck stairs, a rise of around seven inches should be paired with a tread depth (or run) of at least 10 to 12 inches. While it is possible to design stairs with risers up to 12 inches, this height can be challenging for children, pets, or individuals with mobility issues. Always check with your local building codes, as they may mandate specific dimensions that differ from these general recommendations.

Both aluminum and composite decking materials are environmentally friendly, with aluminum decking coming in as the most eco-friendly option. 

Though composite decking helps remove plastics from landfills, recycles wood, and lasts longer than traditional wood decks, it’s not recyclable and only lasts for 25 to 30 years on average. Aluminum can last well over 30 years and is almost always recyclable.