3/8/2024 0 Comments Metal rafter span calculationsLocal building codes can sometimes have different joist spacing requirements. If you’re installing deck boards at a 45-degree angle to your joists, you’ll need to tighten up your joist spacing to 12-inches on center. One note: that 16-inch spacing is based on a traditional deck board pattern, with boards installed perpendicular to joists. You can find joist spacing requirements in the installation instructions for your deck boards. In almost every case, composite decking manufacturers have found that 16-inches on-center is the maximum joist spacing for their boards. ![]() To make sure you’re planning your deck frame with the right joist spacing, there are two sets of standards you should check:Įvery deck board manufacturer puts its decking material through in-depth independent testing to find the right joist spacing. How To Make Sure You Have The Right Joist Spacing (On-center means the length from the center of one joist to the center of the next joist, rather than a gap from edge to edge).Ī slightly more in-depth look: the maximum joist spacing you can use for your frame will depend on a few factors: The short answer: deck joists are typically spaced either 12 inches or 16 inches apart, on center. How Far Apart Should You Space Deck Joists? Steel framing also supports longer maximum joist spans, and steel framing parts are more consistent in size and straightness, making things much easier for DIY builders. But new steel framing options are becoming more and more popular for their strength and durability. Traditionally, deck frames were built with pressure-treated lumber. Joists attach to a ledger board using joist hangers and run the entire length of the deck, perpendicular to the house.ĭeck joists, like the rest of your deck’s frame, can be made from a few different materials. Joists are structural elements that make up the framework of the deck beneath the deck’s walking surface. ![]() Joist Spacing: the distance between each joist, measured from the center of one joist to the center of the next joist.Joist Span: the length of your joist from one end to the other.How To Plan Deck Joist Spacing & Joist Spans Terms to Know Give us a call at 1-88 to work with a knowledgeable deck planner to create a deck project perfectly suited to your vision and your experience level with DIY builds. We staff a team of experienced deck project planners who are available by phone to help you plan your project from start to finish. Personal Deck Planning Guidance: Unlike your local hardware store, we don’t sell you deck parts and send you on your way. And we want to give you the tools to make it easier! Here are two resources we provide to help you get started:ĭecksDirect’s Deck Framing Guide: To learn more about all the parts and layout of a deck frame, check out our How To Frame A Deck Guide, written by experienced decking professionals. DecksDirect: Your DIY Deck Project GuideĪt DecksDirect, we know you’re capable of planning and building your own deck frame. More important than all that, though: joist spacing and span requirements are based on tried-and-true industry standards, and they’re in place to make sure your deck is safe and structurally sound for you, your family, and your friends. It’s essential to plan your joist spans and joist spacing correctly - this makes sure your deck will meet building codes and makes it much quicker and easier to get the building permits you need to get started on your deck project. Why Do I Need To Plan My Deck With The Right Joist Spacing? How To Make Sure You Have The Right Joist Spacing.How Far Apart Should You Space Deck Joists?. ![]() How to Plan Deck Joist Spacing & Joist Spans.DecksDirect: Your DIY Deck Project Guide.Why Do I Need To Plan My Deck With The Right Joist Spacing.Check out this guide to plan your deck with the right joist spacing and joist spans for your project. While building a deck frame isn’t as simple as nailing a few boards together, it is an attainable DIY project - with the right knowledge and guidance. Planning and building a DIY deck frame is a great way to build a personalized deck you can be proud of.
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