## How far can you span a 4X10 beam?

9′-8″

Dimensional Lumber Deck Beam Span Chart

Joist Spans | ||
---|---|---|

Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Red Pine | 4X10 | 9′-8″ |

4X12 | 11′-2″ | |

3-2X6 | 7′-1″ | |

3-2X8 | 9′-5″ |

## What size lumber can span 10 feet?

Thus, a 2×6 size of lumber can allow to span 10 feet. For a 10-foot spans, the lumber has to be at least 6 inches in depth used as floor joist.

**How far can a Doug fir 4×6 beam span?**

Obviously, the larger the beam, the greater the distance it can span between posts. A Redwood 4×6 beam should span no more than 6′ between supporting posts.

### What size lumber can span 8 feet?

Max. Live Load 60 lbs/ft2 (2873 N/m2)

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

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

2 x 8 | 16 | 10′ – 8″ |

24 | 8′ – 8″ | |

2 x 10 | 12 | 15′ – 0″ |

### What size beam do I need for a 10 foot span?

Thus, for a 10 foot span, you will need atleast 3-2×8 or 6×8 size of wood beam. For a 10-foot spans, the wood beam has to be at least 8 inches in depth and 6″ in width (3-2×8) used for residential building or projects.

**What size beam do I need for a 12 foot span?**

Thus, for a 12 foot span, you will need atleast 3-2×10 or 6×10 size of wood beam. For a 12-foot spans, the wood beam has to be at least 10 inches in depth and 6″ in width (3-2×10) used for residential building, wood frame structure or projects.

#### How far can a triple 2×10 beam span without support?

For a more normal-sized deck, the same beam can span 8′, supporting a deck that is 8′ wide. You can also triple a 2×10 beam. In that case, you could span up to 15′ for decks that are 4′ wide and up to 10′ for decks that are 8′ wide.

#### How big of a beam do I need for a 12 foot span?

A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on.

**How big of a beam do I need for 10 foot span?**