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Old 03-19-2012, 12:47 PM  
tcampbe
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Default Rim joist

I ran into some rot issues on the front rim joist of my deck. The previous owner who installed the joist had butted two 2x8s together to creat the front joist. It spans 18 ft in total. My question is whether or not this is correct and should it in fact be one continuos board. Please help.



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Old 03-19-2012, 02:48 PM  
nealtw
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It's always stronger and better looking if you can use a full length peice but it is perty standard to have a joint in something that long.



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Old 03-19-2012, 03:31 PM  
kok328
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As long as the joint occurrs where there is a deck post so that each end of the joist is attached/supported. Ideally, the joint should be a lap joint not a butt joint.

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Old 03-20-2012, 07:38 AM  
tcampbe
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Ok thanks! I think I will go with a single board especially since there will be a railing attached. Will probably do some blocking where the 4x4 posts will be.

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Old 03-20-2012, 10:06 AM  
nealtw
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Yes solid blocking between joists inside where the post go.

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Old 03-22-2012, 09:10 AM  
joecaption
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Any chance of a picture of the area your working on?
The reason I ask is, I'm trying to see how long a span your trying to run, trying to see what may have caused the rot.
Good luck trying to find a 2 X 8 that long. They do make them but not something Lowes or HD will will have.

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Old 03-24-2012, 01:11 PM  
tcampbe
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The rot i believe came from a terribly constructed Florida room that sat on top if it. Here are some pics. Found a 20ft piece this morning



image-1458163233.jpg   image-4245831685.jpg  
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