How far can a deck be cantilevered? Joists cantilever should have an overhang limited of up to 24 inches. The drop beam can extend to a maximum of ¼ of its length over a post. For example, if the back span of the joist is at 16 feet, you can cantilever for up to 4 feet.
How Far Can You Cantilever a Deck?
Cantilevering a deck can be an effective way to add extra space to your outdoor living area without needing to add additional support posts to your deck. When cantilevering a deck, there are a few key considerations to take into account to ensure the safety and stability of your deck. The first is the distance you can cantilever your deck. Generally, the maximum distance you can cantilever a deck will depend on the size of your deck, the material used for your decking boards, and the support structure in place for your deck.
The size of your deck is an important factor in determining how far you can cantilever your deck. If you have a larger deck, this will give you more leeway in terms of how far you can cantilever. This is because larger decks have more support posts and beams, which can better handle the weight of the deck and its cantilevered sections. However, if you have a smaller deck, the opposite is true and you should be more conservative when it comes to cantilevering the deck.
The type of material you choose for your decking boards can also impact the distance you can cantilever your deck. Generally, wood is the most common material used for deck