##### Asked by: Katharyn Cheharin

asked in category: General Last Updated: 26th March, 2021# What size lumber can span 24 feet?

Maximum Span (ft - in) | ||
---|---|---|

Nominal Size (inches) | Joist Spacing Center to Center (inches) | Lumber Grade |

2 x 10 | 24 | 16' - 8" |

2 x 12 | 12 | 25' - 7" |

16 | 23' - 3" |

Moreover, what size lumber can span 20 feet?

Re: **20** foot clearspan beam **size** In that case, you need something like a 12-16" GLULAM or LVL to **span** the **20**' and **can** use simple 2x8-10 dimensional **lumber** 16"OC as floor joists.

Likewise, how far can a 2x8 beam span without support? In general terms, joists spaced 16 inches on center **can span** 1.5 times in feet their depth in inches. A **2x8** up to 12 feet; **2x10** to 15 feet and 2x12 to 18 feet. The larger the deck, the larger the joists.

Also know, how far can a 2x10 span without support?

When **supporting** joists that **span** 12 feet with no overhang beyond the beam, a double ply beam **can span** in feet a value equal to its depth in inches. A double 2x12 beam **can span** 12 feet; a (2) **2x10 can span** 10 feet and so on.

What is the maximum span for a 2x10 floor joist?

21 feet