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How far can a 2x8 free span?

Updated: 10/5/2023
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Wiki User

11y ago

Best Answer

It varies depending on what you are spanning and what kind of wood you use. If you are referring to floor joists , here's the numbers for a few wood species. This is for joists at 16" on center.

Southern Yellow Pine #1 Grade 9'-11"

Southern Yellow Pine #2 Grade 9'-9"

West Coast Douglas Fir #1 9'-11"

West Coast Douglas Fir #2 9'-9

Hemlock Fir #1 Grade 9'-6"

Hemlock Fir #2 Grade 9'-1"

Spruce/Pine/Fir Southern #1 8'-10"

Spruce/Pine/Fir Southern #2 8'-7"

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Wiki User

13y ago
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Wiki User

11y ago

Roughly 10 ft It depends on the load it's carrying. Whether it's for a roof or floor would be an example. These loads would both be different, therefore each would span differently.

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Anonymous

Lvl 1
4y ago

how far can you span with a 2x6x12ft

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Q: How far can a 2x8 free span?
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