Floating Decks: The Smart Solution for Homeowners Seeking Affordable, Permit-Friendly Outdoor Living Spaces

Floating decks have emerged as one of the most popular and practical outdoor construction options for homeowners looking to expand their living space without the complexity and expense of traditional attached decks. Unlike conventional decks that require deep footings and structural attachment to your home, floating decks offer a versatile, cost-effective solution that often bypasses many permitting requirements while delivering the same outdoor enjoyment.

Understanding Floating Deck Permit Requirements

One of the most significant advantages of floating decks is their simplified permit requirements. If your planned deck is smaller than 200 square feet, lower than 30 inches off the ground, detached from the home, and away from the main exit door, you may not need a permit. However, permitting requirements vary by city and state, and there’s no guarantee that even a small, free-floating deck wouldn’t still need a permit. You should always check in with your local building department to be sure your plans are acceptable.

The only exemptions are if the deck is 200 square feet or less, is not attached to a house or structure, and is less than 30 inches tall. You likely won’t need a permit for your floating deck if your project meets the following criteria: The deck takes up fewer than 200 square feet. The deck is not more than 30 inches above the ground. The deck is not attached to your house. The deck is not in front of an egress door.

For homeowners on Long Island seeking professional deck construction services, working with an experienced deck builder centereach ensures compliance with local building codes and proper construction techniques for coastal environments.

Foundation Requirements: Simplicity Meets Stability

Floating decks derive their name from their unique foundation system that literally “floats” above the ground. Floating decks don’t require frost-depth footings because the deck blocks sit on top of the soil. This fundamental difference makes them significantly easier and less expensive to install than traditional decks.

The plan for this deck is to use paver base and concrete deck blocks for the foundation. The 2-inch-by-6-inch joists will rest on top of the blocks. Concrete deck blocks are great alternatives to concrete foundations. They support the deck frame above the ground and can hold your framing members horizontally, or they can vertically support posts for a higher deck.

The foundation process involves several key steps:

Leveling the ground and removing vegetation
Creating a stable base with gravel or sand
Positioning concrete deck blocks at precise intervals
Ensuring proper drainage to prevent water pooling

A cement block deck footing is similar to a deck block footing in many ways, but it’s a little less expensive and even easier to install. Placed on top of the ground, the cement block can hold a post for a small deck. It won’t be the safest choice for tall, large decks that will hold heavy furniture, but it’s suitable for small decks that aren’t far off the ground (especially floating decks on flat graded soil).

Cost Benefits: Maximum Value for Your Investment

The financial advantages of floating decks extend far beyond their initial construction costs. Building a floating deck costs an average of $4,500 or $20 to $60 per square foot, three to five times more than building a standard ground-level deck. The most affordable builds start at $500, while large decks made from premium materials can reach $25,000.

Floating decks typically cost between $20 and $60 per square foot. When compared to traditional attached decks, floating decks offer several cost advantages:

No Deep Excavation: Eliminating the need for frost-line footings saves hundreds of dollars in labor and equipment costs
Reduced Material Requirements: One significant advantage of floating decks is that they do not require ledgers for stability nor extensive amount of lumber, allowing you to place them anywhere except next to a house or another structure.
Lower Labor Costs: Floating Decks: Economical at $20-$25 per square foot, these require no railings or stairs.
Permit Savings: Avoiding permit fees can save $100-$500 depending on your location

A deck contractor will charge $2,090 to build a basic rectangular 10-by-12-foot ground level floating deck using a pier system of blocks and composite surface decking. That includes labor and material. You can do it yourself for $710, the cost of the material, and save 66 percent.

Additional Benefits Beyond Cost Savings

Floating decks offer numerous practical advantages that extend their value proposition:

Flexibility and Mobility: It’s also easy to care for and has built-in mobility because it can be disassembled and hauled—try that with a conventional deck! This portability makes floating decks ideal for renters or homeowners who may relocate.

Faster Construction: Handy homeowners may be able to build a DIY floating deck in 1–3 days, depending on size, materials, and experience level. Pros can usually complete builds faster, especially for larger or more complex layouts.

Versatile Applications: Floating decks are perfect for various purposes in your outdoor space: Garden Seating Areas: Create a cozy spot in your garden for relaxation or entertaining guests. Pool or Spa Surrounds: A floating deck can provide a stylish and functional area around a pool or hot tub. Temporary Structures: If you want a seasonal deck that you can easily disassemble, a floating deck is an ideal choice.

Professional Installation Considerations

While floating decks are more DIY-friendly than traditional decks, professional installation ensures optimal results. Because a floating deck isn’t anchored to the home, it eliminates the structural tie-in step, which can make DIY installation more approachable. Hiring a deck pro reduces the risk of costly mistakes, provides access to trade-priced materials, and saves you considerable time—all while ensuring the finished structure meets safety standards and lasts for years.

Corsino Construction Corporation, serving Suffolk County since 2000, brings over two decades of experience to floating deck installations. Their expertise in coastal construction ensures that your deck will withstand Long Island’s unique environmental challenges, from salt air corrosion to seasonal weather extremes.

Making the Right Choice for Your Property

Whether you choose a floating deck or a fixed deck, each option offers unique benefits tailored to different needs and preferences. For a straightforward and cost-effective solution, a floating deck might be your best bet. However, if you seek a durable, versatile, and integrated outdoor space, a fixed deck is likely the way to go.

Floating decks represent an excellent solution for homeowners seeking to maximize their outdoor living space while minimizing costs and complexity. With proper planning, quality materials, and professional installation when needed, a floating deck can provide years of enjoyment while adding value to your property. Whether you’re creating a quiet garden retreat or an entertainment space, floating decks offer the perfect balance of affordability, functionality, and aesthetic appeal.