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

**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.

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Hereof, 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.

One may also ask, are two 2x6 stronger than a 2x8? In bending, a joist composed **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.

Consequently, 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" |

What is stronger a 4x4 or 2 2x4?

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.