# Which is stronger 2 2x4 or 1 2x6?

Category:
business and finance
construction industry

According to this website, a double

**2x4**is not as strong as a**2x6**.**One**of the comments: A doubled-**2**×4 is only half as strong in flexure as a single-**2**×6.

Regarding this, is a 2x4 stronger than a 2x6?

Yes, a **2x4** is stroger **than** a 2x3 as is a **2x6 stronger than** a **2x4**, but using one over the other does not necessarily make the structure **stronger**, it just may be overkill.

**of two 2x6's**(true dimension 1.5 inches x 5.5 inches) are slightly

**stronger than**a single

**2x8**true dimensions 1.5 inches by 7.25 inches.

Just so, how far can you span a double 2x6?

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

Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Red Pine | 3X6 OR 2-2X6 | 5'-2" |

3X8 OR 2-2X8 | 6'-7" | |

3X10 OR 2-2X10 | 8'-1" | |

3X12 OR 2-2X12 | 9'-5" |

Now, I knew **two** 2x4s sistered would be **stronger** than a **4x4** since you have opposing grains, what I didn't realize is that 4x4s are actually cut from the core of the tree which is the weakest part of the tree (thanks Dad for the lesson in lumber). So a standard **4x4** is actually much weaker than **two** 2x4s side by side.