![]() Before you build a deck, verify this with your local building department and read the installation instructions for the decking material. The normal spacing for deck joists is 16 inches on center. How Far Apart Should Deck Joists Be Spaced?Ī lot of questions revolve around joists when it comes to building a deck. The size and construction of beams are very important and should be specified by an architect, a residential structural engineer, or the building department of your local municipality. Beams away from the house are almost always supported by vertical posts or columns. The joists sit on top of a beam or are attached to a beam using joist hangers. ![]() It’s not only responsible for supporting the weight of the joists but other building elements as well. What Is a Beam?Ī beam is the main load-bearing element for the structural soundness of your deck. You can determine the size of the joists using a span table. The building code has very stringent minimum standards for the amount of weight a deck floor must be able to hold. The minimum size joist used in deck construction depends on the distance the joists span between bearing points and the species and grade of the treated lumber used to create the joists. Joists are the repeated structural members that are used to build a deck frame. That includes knowing the difference between a joist and a beam and what purpose they serve to your deck and its functionality and safety. And while it’s important to have a deck that’s aesthetically pleasing to you, you first have to make sure it’s structurally sound. ![]() Bringing your favorite people together to enjoy a beautiful summer day on your deck is a great way to unwind and relax.
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