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Old 02-22-2018, 07:54 AM   #16
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Re: best way to reinforce floor


2x6 header would span the joists you need. It's not load bearing in the usual sense because your joists and foundation probably are in the range of being able to handle 2000 lbs. Load is not in the middle of the span. Washing machine is a problem. If you can put 2x6 against that wall, you can use double hanger for that side.
You can't use usual shims. Then the load may go to sheathing at points. Instead put one continuous piece with the thickness you need. Don't know what kind of engineered floor, but thin veneer may crush over time. Make sure you have felt cushion or such under the cabinet or shims and make the contact as wide as possible.
Some other points. Why do you need the shims? Is the floor sagging? May be the joists are over-spanned.
The 2x6 header does not have to be exactly under the tank. Could be 4-6' away from the foundation. Point is just shorten the span.
Electrician may not like the placement of things if there is work to be done around the panel. I think the rule is 30" min of work space around the panel and wash machine may be ok but posts or such would be in the way.
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Old 02-22-2018, 07:38 PM   #17
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I made a quick scketch. I would prefer to put the left column on the left hand side but that means the column would be about 5 away from the left corner of the tank. Is that an issue?
I
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Old 02-22-2018, 07:40 PM   #18
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I could sister and block the entire length of the beam
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Old 02-23-2018, 01:36 AM   #19
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Re: best way to reinforce floor


If you want the beam to span the whole room, double 2x6 may not be enough. But post in the mid space may not be good. Sorry but that's the limit for me. I don't know what kind of span chart you'd need if you want wall to wall span. Anecdotally, I would try triple 2x6 or 2x8 if you have the headroom. You can check the height from header to the floor once a week with a story pole or such to be sure the header isn't sagging.
First though, I'd want to know why you need to shim the tank.
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Old 02-23-2018, 01:47 AM   #20
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Re: best way to reinforce floor


Where I live a header is double or triple 2x10. If you are going beam I see no need for sisters but blocking above the beam yes all the way.
If you are going between 2 interior wall I would dig into them and run a 3 ply right into those walls with a king and 3 jack studs. And call it over done.
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Old 02-23-2018, 11:57 AM   #21
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Carpetdad, I had a 90 gal tank there for years and I had to shim it up a little. I still need to take a level to the floor and see how much its sagging. Joists are 16 on center so Im not sure whats the issue. When I redid my kitchen I was going to open up the entry way to this room and I noticed the main load bearing wall running down the center of the house on the main floor was not sitting directly on the beam that supports it. Its off by a foot or two. I guess thats just how they built it back in 79. Perhaps thats the cause?
I hired a structural engineer to take a look just to be on the safe side so well see what he says I need to do for sure. Ill keep ya posted.
Thanks for all the help.
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Old 02-23-2018, 12:34 PM   #22
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Re: best way to reinforce floor


I hope you are raising those fish to eat, for the money they are going to cost you to give them a home.
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