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Old 01-20-2022, 10:07 AM   #1
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Questions on floor joist support

Hello I have 2007 Jay Feather. There is a soft spot in the middle of the floor (24" X 30"). Are the joist a standard 2" X 4" or a custom size?
Second Question Can I use PVC plastic type 1" X 4"s? Home Depot website for replacement pieces? I would need to use 2 1" boards
https://www.homedepot.com/p/Veranda-...822134#overlay
Thanks Mike Dickinson
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Old 01-20-2022, 11:18 AM   #2
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While it may work for what you need it for, that stuff should not be used for structural support it cant really provide it. It can be great for trim and fascia type stuff though. Maybe try screwing a couple or even three of them together to make a 2x or 3x out of them and that may provide enough support for your small area.
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Old 01-22-2022, 07:28 PM   #3
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I don't know if your floor structure is the same construction as my 2016 White Hawk. My floor joists are steel trusses. I needed to open up the plastic underside of my trailer to get access to some things under my floor.. Floor joists are steel angle iron, top and bottom with a zig-zag pattern of steel welded between them. See my rough sketch. I don't think you have a floor joist issue. Could be week plywood subfloor.



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Old 01-27-2022, 10:50 AM   #4
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Quote:
Originally Posted by Mike Dickinson View Post
Hello I have 2007 Jay Feather. There is a soft spot in the middle of the floor (24" X 30"). Are the joist a standard 2" X 4" or a custom size?
Second Question Can I use PVC plastic type 1" X 4"s? Home Depot website for replacement pieces? I would need to use 2 1" boards
https://www.homedepot.com/p/Veranda-...822134#overlay
Thanks Mike Dickinson

Scott91370 posted on his partial floor replacement in his 2007 19H, which I'm pretty sure was a Jay Feather. Maybe it can be of some help to you. It's a pretty detailed posting.

https://www.jaycoowners.com/forums/f...ent-51163.html
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Old 01-27-2022, 12:19 PM   #5
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If it's a Jay Feather it is a laminated floor. Joists are made of aluminum and are bonded to the subfloor and under-layer of plywood. Construction is very lightweight and joists are much smaller than a 2*4, and are not on standard centers (sorry, didn't think to measure when I was redoing my floor. But at least there are some joists, many other brand lightweight trailers have no joists at all (just plywood bonded to styrofoam with metal frame around the edge.
As mentioned above @Scott91370's project has some good pictures and explanation and was a great help when I redid my own floor.
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