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Old 09-19-2021, 08:24 PM   #1
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Adding additional lag bolts to secure floor joists

I have some floor creaks in my new camper and crawling under I noticed I only have 4 bolts and the outriggers attaching the floor to the camper frame. Does anyone think I would have any issues if I added lag bolts at every cross member to better secure the floor "joists" to the frame? Even at the front and back it's not attached...
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Old 09-20-2021, 05:19 AM   #2
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Good job on the safety items before crawling under. As to why hopefully someone smarter than I am can weigh in.
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Old 09-20-2021, 06:29 AM   #3
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I wouldn't see a problem adding a few extra lag bolts.

Most camper floor joists are 3x2, so keep that in mind when it comes to bolt length.
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Old 09-20-2021, 10:58 AM   #4
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The creaking noise you are experiencing is more than likely a gap between the sub-floor and the joist.
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Old 09-22-2021, 07:32 AM   #5
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Keep in mind this is not a stationary item, it does twist on some of these roads.
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Old 09-22-2021, 11:46 PM   #6
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I picked up some 1/4" Simpson Strong tie bolts...might add a few...but not go crazy. Where I did tighten those 4 bolts it did stop the floor from creaking there. But yeah...dont want to make it so tight that it doesn't move.
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Old 09-23-2021, 05:47 AM   #7
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I think lag bolts would loosen up over time.
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