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Old 12-30-2012, 11:50 PM   #16
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How to Sister I Joist


You my friend need to install some POSTS. thats a BIG aquarium....alot of added weight on your floor joists. I would much rather see that weight be transferred to the basement underneath. personally I would rather OVERdo it on this one...

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Old 12-31-2012, 05:52 AM   #17
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How to Sister I Joist


Thank you all for the responses. I think I will rather over do it on this one, especially since this is my first home and first real DIY project. So my plan based of of everyone suggestions is to sister the two i-joists below the aquarium as mentioned in the earlier replies. Then I will use the two jack posts I have and place them underneath the joist that is directly under the aquarium for added support and to transfer the weight to the basement floor. I already had purchased two jack posts and a 4x6. Would that be enough to transfer the weight down to the floor? Like I mentioned the aquarium will be about 8 inches from a load bearing wall and will be over one i-joist and 3/4 of the way to the second joist. Is there an approved method to transfer some of the weight to the second i-joist or would the sistering and then using the 4x6 and two jack posts suffice for this application? I will purchase the rest of the items needed this week so I can work on it over the coming weekend. Thanks again for helping me make this project work.
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Old 12-31-2012, 06:32 AM   #18
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How to Sister I Joist


You will probably need to dig and pour concrete for footers under those jack posts to properly transfer the load to the foundation of your house. This may may be required in your area...check with your local building dept. or a structural engineer.
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Old 12-31-2012, 06:53 AM   #19
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How to Sister I Joist


also consider upgrades in is tank size later...but look at it this way. If you frame a little room under you could add a sump /filtration etc to run underneath adding capacity ...

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