Keyword | CPC | PCC | Volume | Score |
---|---|---|---|---|

beam size for 18' span | 0.24 | 0.4 | 3394 | 58 |

beam size for 16' span | 1.87 | 0.4 | 8671 | 85 |

what size beam for 18' span | 0.99 | 0.6 | 236 | 54 |

what size beam for a 18' span | 1.57 | 0.9 | 348 | 68 |

what size beam for 18 foot span | 1.16 | 0.8 | 2353 | 98 |

beam size for 16' span for roof | 0.78 | 0.8 | 4271 | 30 |

what size beam for 16' span | 1.95 | 0.2 | 5192 | 29 |

what size beam for a 16' span | 0.3 | 0.3 | 4143 | 20 |

what size ridge beam for 16' span | 1.84 | 0.5 | 2614 | 18 |

beam size for 16 ft span | 1.22 | 1 | 3108 | 34 |

calculate beam size for 16 span | 1.31 | 0.4 | 4895 | 17 |

what size beam for 16 ft span | 1.83 | 0.9 | 5162 | 70 |

what size beam for 16 foot span | 0.78 | 0.3 | 9875 | 40 |

To clear span 18', in your configuration, you can use the following: 6"x14" Douglas Fir (#2 grade) beam. or. 6"x12" Douglas Fir (#1 grade) beam. You will need to have a local engineer detail your connections, size your support columns, and determine foundation requirements.

There are several beam span tables for all the species of wood. This table is simply a sample and may not be valid for your region. This span table excerpt shows two possible sizes of built-up floor beams (2 X 10 and 2 X 12).

I am going to span 18' length with an LVL beam. The beam is going to be flush to the ceiling joist and recessed into the attic. One end will sit on a post that will go to the block foundation, the other will attach to a 3' beam on each side of a hallway.

You will see that a 4-ply, 2 X 12 can span a maximum of 13' while supporting 12' joists on either side of it.