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Old 11-09-2019, 05:18 PM   #1
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Suggestions on fixing plywood floor at entry way of shed


When I bought my home it came with a 36 x 18 shed that has the floor joists resting on 6 x 6 beams with concrete blocks placed underneath the beams every six feet. As you can see in the photo's the plywood floor in the entry way is bowed upward. It appears the blocks to the left and right of the door have compressed the ground due to the weight of the shed, but the block that was placed under the door did not compress the ground since their was not much weight resting on it.

Mice are getting into the shed due to the gaps at the bottom of the door. You will also notice the plywood floor s falling apart due to being exposed to the weather. I am in Montana and would have never built it this way.

Any suggestions on how to remove the bow and fix the plywood floor? Cutting out the plywood in not an option due to how it was built.

Thank you for the help

Greg
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Old 11-09-2019, 05:52 PM   #2
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Re: Suggestions on fixing plywood floor at entry way of shed


Maybe jack up the outer sides of the shed, and shim over the sunken blocks.

This will raise the outer support, and cause the plywood floor to bend back the other way.

and a weather strip cover of some kind to prevent further decay of the wood.

ED
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Old 11-09-2019, 07:09 PM   #3
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Re: Suggestions on fixing plywood floor at entry way of shed


Take the block out and and put 2 blocks one on each side of the door under the studs.
Make sure all four blocks are in a straight plane if not level .
Then just cut the 6x6 under the door. When it comes back to straight, screw a 2x10 across the ends of the joist and the 6x6.
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Old 11-09-2019, 07:50 PM   #4
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Re: Suggestions on fixing plywood floor at entry way of shed


Maybe just pull the block as Neil suggested, let time and gravity work for you. Add a new support after it settles some.
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Old 11-10-2019, 01:05 PM   #5
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Re: Suggestions on fixing plywood floor at entry way of shed


Thank you for the suggestions. I removed the block that was under the 6 x 6 in the center of the door and put a level on it, it is level. I thought due to no real weight on the floor in the entry was causing the floor to be bowed upward. Looks like the floor has sank near the frames. Any idea what would cause this and how to fix?

Thank you

Greg
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Old 11-10-2019, 01:10 PM   #6
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Re: Suggestions on fixing plywood floor at entry way of shed


Quote:
Originally Posted by moose107 View Post
Thank you for the suggestions. I removed the block that was under the 6 x 6 in the center of the door and put a level on it, it is level. I thought due to no real weight on the floor in the entry was causing the floor to be bowed upward. Looks like the floor has sank near the frames. Any idea what would cause this and how to fix?

Thank you

Greg
The door jam and studs are between the joists and with out a rim under the plywood, there is no support so you could just wedge them back up to where they should be.
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Old 11-10-2019, 01:17 PM   #7
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Re: Suggestions on fixing plywood floor at entry way of shed


cut 2 2x6 for each side and nail them together and hammer them in under each door jam. You may not get them all in one day just wait a few days and hammer some more until you get them in.
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