Decks rely on load-bearing posts for support. Load-bearing posts, in turn, rely on footing, a term that refers to the deep holes filled with concrete. If your deck’s footing isn’t deep enough, your new deck might become unstable.
What are things that can affect your deck’s footing and, by extension, the stability of your new deck? TJ Exteriors Inc., your local exterior and roofing contractor, lists them below:
Dead loads refer to to the weight of all your deck’s permanent components—its posts, beams, framing and railing—while live loads refer to the combined weight of temporary elements on your deck such as furniture.
How much weight would a deck normally need to support? It varies depending on your local building codes. In general, however, the deck should be able to support a dead load of 10 pounds per square foot and a live load of 40 pounds per square foot, which means the footings need to support a total weight of 50 pounds per square foot.
Loose soil won’t be able to provide enough support for a deck. To offset the lack of support from loose soil, larger footings can be used.
Extreme shifts in temperature can cause the soil to expand or contract. Any movement in the soil can affect the stability of your deck or any structure that relies on it for support. To learn more about the factors that can affect your new deck, consult an exterior remodeling contractor.
Looking for contractors near you? Here’s a tip: It’s best to hire local contractors. Since they’re more familiar with the local climate and building codes, they can make better recommendations.
TJ Exteriors Inc., a company with more than three decades of experience, offers professional exterior remodeling services, including deck construction and roof replacement services. To get a free estimate, call us at (952) 448-4312 or fill out this form.