- **Decks & Patios**
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- - **Structral Question**
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Structral QuestionI am looking for the formula for the different sized boards for the joist (ex. 2 X 6, 2X 10)
The formula that I am looking for is how to calculate the maximum span I can run my floor joist using a deflection of L/360. and I am also looking for the spacing between joist. I am not sure what a good pounds per square foot would be, I am not putting a hot tub or anything on the deck. I know there are places on line that I can enter the type of wood I am using but in the size of board I want to use and specify the spacing that I would like to use and it will calculate the span that I should not exceed. But I am looking for the formula that is used to arrive at that answer if anyone can help me out. |

you will need or should probably go to an engineering site to see if that is available. Might try a university also
steve scholl www.thedeckbarn.com www.killerdecks.com |

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http://www.thedeckbarn.com/howto-buildadeck.aspx Here is a how to that will give you the formulas you are looking for. There were made by The American Wood Coulnci.
www,thedeckbarn.coml |

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