##### Asked by: Alaina Hickman

asked in category: General Last Updated: 22nd April, 2020# What is the maximum span for a 2x8 floor joist?

**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.

Also know, what is the maximum span for a 2x6 floor joist?

Max. Live Load 30 lbs/ft2 (1436 N/m2)

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

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

2 x 8 | 12 | 15' - 10" |

16 | 14' - 5" | |

24 | 12' - 4" |

Subsequently, question is, how far can a double 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.

Beside above, how much weight can a 2x8 joist hold?

some of it gets pretty technical in nature, and mostly relates to pounds / square foot of loading. 2x6s are generally used for ceiling **joists**, esp since you said 24" oc and reallllly short spans only (5 or 6 feet ). Most floor loads would be a minimum of **2x8** @ 16" oc and most preferbaly 2x10.

How long can floor joists be without support?

A live load of 60 pounds per square foot demands more **support** and shorter spans. Spaced at 12 inches, the **joist** may only span 16 feet 8 inches. At 16 inch spacing, 15 feet 2 inches and 13 feet 3 inches at 24 inch spacing.