Deck Support Spacing
What is the required spacing for deck posts.
Deck support spacing. Size of the deck. The required width of a joist depends on its span. In general posts should be spaced no more than 8 feet apart.
Some builders position them every 4 feet for a completely rigid frame. If you re building a simple deck footings and posts should be placed less than 8 feet apart. The maximum distance between footings is determined by the size of your joist material.
Dimensional lumber deck beam span chart the numbers in gray indicate the distance between the support posts. The size of the deck directly affects the spacing of the support posts. Below we ll take a look at some of the main considerations when asking how far apart should deck posts be.
Or if your deck has many angles additional footings are necessary. For instance joists that are placed 24 inches apart must be wider than joists placed 16 inches apart. However if your deck will include a hot tub or roof you must support that weight with additional footings.
Starting with your perimeter mark the location of each deck post to locate the fitting position. There is no minimum span and maximum spans can reach up to 15. It also depends on the joist spacing.
Joist spacing for composite decking. The distance between deck support posts depends on the type of wood species used and the size of the joist and beam. Most decks use 16 on center spacing for joists.