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Old 08-25-2008, 01:45 PM   #1
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Extending deck joists


First time posting here and would appreciate some advice on building a deck. Size would be 10' X 20'. If I'm using 12' lumber for joists, what is the best way to join two boards together to get the length that I need?

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Old 08-25-2008, 01:57 PM   #2
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Extending deck joists


What kind or a deck? - Free standing or supported by a ledger? Free standing is the most trouble free since the ledger support includes many problems. Are you letting the joist length you have decided on dictate how you design and build the deck?

Usually, you will need beams to support the joists.

I would suggest looking for design help somewhere to avoid wasting money.

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Old 08-25-2008, 02:01 PM   #3
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Extending deck joists


Sandwich them together on top of a support member. You ca nail or bolt them. Make sure you do it on the inside so it is not seen.
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Old 08-25-2008, 02:34 PM   #4
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Extending deck joists


I'm planning on putting 4 X4 posts into the ground. It sounds like I should center the two joists on top of the post
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Old 08-25-2008, 02:49 PM   #5
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Extending deck joists


Why not use 10' lumber with 20' lumber?

If you can't pick it up, just get it delivered to your property by the supplier.
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Old 08-25-2008, 05:10 PM   #6
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Extending deck joists


Quote:
Originally Posted by rleabhart View Post
I'm planning on putting 4 X4 posts into the ground. It sounds like I should center the two joists on top of the post
No,
Put the Beams on posts, put the joists on the beams. And definitely just get the right length and get it delivered.

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