Ground Level Deck Footing Optionsīecause ground level decks in most cases don’t require you to go deeper than the frost line, you have more options when considering what type of footing to use. As such, your build time for a ground-level deck should be markedly faster than it is for a standard deck. Why? Due to their proximity to the ground, they don’t require beams, stairs or railings. One of the advantages of a ground-level deck is that they’re easier to build. This means the deck frame will be more exposed to moisture, making them more susceptible to rot. This is even more crucial with ground level decks as they will likely make ground contact due to their nature. Why? As with standard decks, your ground level deck will be exposed to the elements, so pressure-treated lumber is required to prevent your deck from rotting. This almost goes without saying, but you need to use pressure-treated lumber when you build a deck. There is no need to extend a footing below the frost line, as is required for standard decks. No Shallow Footings RequiredĪccording to the main code provision for footings, the only requirement for building a deck that is freestanding is that it must have a minimum footing depth of 12 inches below the undisturbed ground surface. That said, make sure to check with your local building code before getting started to make sure they haven’t amended this IRC guideline. One of the nice advantages of building a ground-level deck is that you won’t need to apply for a permit or wait for inspections.Īccording to the International Residential Code (IRC), no permit is needed if you’re building a deck that does not exceed 200 square feet in area, is not more than 30 inches above the ground at any point, is not attached to a dwelling and does not serve an exit door to a building. General Rules for Grade-Level (Floating) Decks No Permit Required Often, the posts supporting them are not visible, giving the deck its “floating” appearance. While a floating deck might be next to a building, it may also be a standalone structure in the middle of your yard.įloating decks are also called ground-level decks because they typically hug the ground. General Rules for Grade-Level (Floating) DecksĪ ground-level deck, sometimes referred to as a floating deck or platform deck, is so-called because, unlike conventional decks, a ground-level deck is not attached to a home or building.
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