Building a Balcony Deck
Constructing a balcony-style deck is generally only feasible during the original construction of a home. The floor joists inside the home are extended outside, beyond the walls of the house, to support the deck floor. The strength of the joists in the balcony are dependent on a considerable “backspan” of the same joists into the structure, generally a minimum of three times the length of the joists exposed at the balcony. These joists must also extend to a second bearing location inside the home, often a beam or bearing wall down the middle of the home.
Renovating an existing home for this style of deck is not practical. Ceiling finishes below the joists would need to be removed, as would any electrical, plumbing or mechanical systems within the floor framing. When compared to installing a few posts and foundations, there is little return for the cost and labor associated with a retro-fitted balcony deck. If considering this type of deck during the home construction, bear in mind the difficulty in the future to repair or rebuild it. At a minimum, pressure-preservative-treated lumber should be installed, as well as a very close attention to the flashing and moisture control of the framing connections outside. The longer the materials will last, the longer the balcony design will last. Balcony decks are typically replaced using conventional methods of posts and foundations. Cantilevered decks or balcony decks without support posts is a controversial subject in the deck building world.
How to Decorate Deck Support Columns
Browse some examples of decorative deck support posts for tall decks.
How to Build a Ground Level Deck
Adding a ground level or floating deck to your home may be the perfect addition to your outdoor space. Learn how to build a ground level deck at Decks.com.
How to Size a Deck Beam
Learn about how to choose the correct size beam for your deck. We discuss engineered beams and "sandwiched" style beams.
How to Install Decking Over Existing Concrete Slab, Patio, or Porch
Discover the best techniques to build a deck over concrete, ensuring proper drainage and stability, while creating a beautiful outdoor space.
How to Build a Floating Deck
A deck does not need to be attached to a house. Building a floating deck allows you the opportunity to create that perfect outdoor space anywhere on your property. Find out if a floating deck is the best option for your new outdoor oasis.
Best Time to Build a Deck
People often wonder when the best time to build a deck is. Learn why building a deck in winter or fall might be your best bet.
More Helpful Resources
Explore Articles by Topic

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Learn structural framing methods

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Learn about wood and composite decking materials

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An in-depth look at the complex issue of how to build stairs

Railings
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Build a covered deck to enjoy all seasons

Ledger
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Care
Maintain your deck to maintain your investment

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Why is Joist Protection so Important for Your Deck?
If you’ve ever seen a piece of wood left out in the weather for any period of time, you know what happens: decay. Whether through wet rot, insect damage, or mildew, the fibers begin to break down.
Deck Floor Joists
Step-by-step instructions and tips on how to frame. Learn how to install treated wood joists and beams to build a strong deck.
How to Nail a Deck Beam
Learn how to nail a beam together. How many nails should you use? What type of nails should you use?
What to Consider When Building A Wrap-Around Deck
Looking to add a wrap-around deck to your home but unsure of what the process involves? Check out this guide to learn more about top considerations when building a wrap-around deck.
How to Build a Floating Deck
A deck does not need to be attached to a house. Building a floating deck allows you the opportunity to create that perfect outdoor space anywhere on your property. Find out if a floating deck is the best option for your new outdoor oasis.
Picture Frame Decking
Install a picture frame or perimeter board to finish the edge of your deck with style.
Explore Articles by Topic

Footings
Information related to installing frost footings for decks

Framing
Learn structural framing methods

Decking
Learn about wood and composite decking materials

Stairs
An in-depth look at the complex issue of how to build stairs

Railings
How to install guardrails and handrails to meet IRC code

Features
An overview on water drainage, benches, planters and lights

Design
The basics of deck design

Planning
Learn about permits and working with contractors

Porches & Patios
Build a covered deck to enjoy all seasons

Ledger
Proper attachment techniques

Care
Maintain your deck to maintain your investment

Materials
An overview on water drainage, benches, planters and lights