Deck Post Size And Spacing

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Deck post size and spacing. The average size for a deck is between 200 and 500 square feet. For conventional guardrail post installation bolted to the side of the framing larger framing will provide more strength in the rails. If you re ready to start planning the building phase of your new deck this guide contains everything you need to know about whether to choose 4 4 or 6 6 posts for a deck. Size of the deck.
This article series discuss best porch deck construction practices including choice of framing materials decking or flooring choices installation how to select and use deck and porch structural and flooring fasteners actual deck porch framing construction details. Deck board and framing member spacing. Building a deck involves multiple carefully planned steps. The size of the deck directly affects the spacing of the support posts.
A span is the unsupported distance between two posts. Details of deck porch construction how to build a deck that won t collapse. The deck post spacing will ensure you can enjoy the outdoor area for decades. The maximum distance between footings is determined by the size of your joist material.
Irc r31s 1 2 field treatment. The first step to building any deck is determining the size creating a scaled 2 d paper drawing and selecting the proper materials. Size your deck beams and headers with our easy to use span table which allows you to cross reference the post spacing and joist length to determine the right deck beam size. Distance between deck posts.
2x6 joists should only be used on ground level decks that do not require and will not provide for any guards. A cantilever is the unsupported end of a joist that extends past the last support post at the edge of your deck. According to building codes there is no clear answer on when you should install a 4 4 vs. While a 16 foot by 16 foot backyard deck for recreational purposes such as an outdoor kitchen and general lounging may only require deck posts spaced every 7 feet a larger deck may require that the spacing be narrowed down to within 5 feet.
Irc r319 1 ibc 2304 11 wood columns shall be of an approved wood with natural decay resistance or approved preservative treated wood. While decks just above the ground don t require posts steps or railings those that are several feet higher will.