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Old 02-23-2016, 03:36 PM   #1
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1972 27' Overlander
Orlando , Florida
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Attention: Shell offers! I need corrected plywood dimensions!

I removed my ply flooring and now and ready to replace. I kept the front and rear ply so I'd have a template for the ellipse. I also know the thickness is 5/8, so good there.

Looks like I failed to measure the width of the center sections before throwing them away. I think it's 92" ( I have a 27' '72 Overland), but want to double check this measurement.

Anyone know the precise total width?

Thx,

Brek
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Old 02-23-2016, 04:41 PM   #2
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1971 27' Overlander
Jackson , Tennessee
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The 1972 service manual lists the dimensions of the floor plywood as 3/4" x 48" x 96". I'm pretty sure this is what I followed back when I replaced mine. The edges extended beyond the outriggers by about 1/2-3/4". Hope this helps.

Hang in there and have fun -
Alan
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Old 02-23-2016, 05:07 PM   #3
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1973 23' Safari
1970 27' Overlander
Boerne , Texas
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Good timing. I am getting ready to replace my subfloor as well. My old subfloor was rotted around most edges, so hard to tell how much they may have extended beyond the outriggers. I had though they came flush to the edge of the outrigger. Also, it looked like the subfloor did not go all the way into the c-channel. Went in about an inch with a 1/2 inch left between edge of the subfloor and the outside edge of the c-channel. I am assuming the subfloor should go all the way into the c-channel, correct? I have a 1973 Safari.

Greg
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Old 02-23-2016, 09:08 PM   #4
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This is a issue that I will be dealing with myself very soon on my 77 that I am getting ready to pop the shell on. I planned on tracing a pattern on heavy duty cardboard once the shell was on the ground per the advice of Mixter. I have wondered though if there was exact specifications available out there somewhere.
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Old 02-24-2016, 10:27 PM   #5
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My 2 cents is that our trailer were carpeted which really doesn't care how flexible the floor is. Most folks are using flooring now. So it would be a good idea to see what kind of floor you are going to use and check that product's requirements to make sure your plywood choice will work and not result in an unappealing installation (floors that squeak, pop, click, or what ever irritates you).
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Old 02-25-2016, 10:38 AM   #6
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1972 27' Overlander
Orlando , Florida
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Plywood dimensions issue

I measured my good outriggers from tip to tip.

They varied by as much as .025 or 1/4 inch.

The result is that they are 91" inches wide from the tip of one outrigger to the tip of it's mate on the other side of the chassis.

Knowing this, I'm assuming I need to add one more inch for a plywood width of 92".

Anybody have suggestions or feedback?

Thanks,

Brek
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Old 02-25-2016, 12:39 PM   #7
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1993 30' Excella
1976 25' Tradewind
Flushing , Michigan
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I have just replaced the first five of six floor sections in the shell off rebuild of my '76 TradeWind 25' Airstream. I used the old floor for patterns and it measures 91 1/2" to 91 5/8" wide and that seems to very slightly overlap the outriggers. I have replaced the "u" shaped c channel around the wheel wells, and will also replace the other c channel pieces along the sides, but will not fasten those until I see where the shell falls and if the rivet holes line up before securing them.

As the back end of mine (rear bath) had extensive rot, both floor and frame, I have not yet cut the last piece of subfloor. The frame has been rebuilt, but the subfloor was too rotted to be able to use as a pattern, both for the straight rear portion to know the exact length, and the curved contour. While I am working to fashion a pattern out of cardboard, I would be most appreciativ of any help in sharing or directing me to a full pattern of that rear section. I consider this to be the trickiest subfloor piece as it also contains many cutouts and holes for the plumbing. All suggestions are welcome. Thanks.
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Old 02-25-2016, 12:44 PM   #8
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I forgot to mention that I used 3/4" duraply/plytanium and routed all around the perimeter down to 1/2" thickness for the subfloor and had some additional bracing welded into the frame in front beneath where the gaucho had been which will be replaced with a dinette.
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Old 03-01-2016, 10:45 PM   #9
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1978 Argosy Minuet 6.0 Metre
Camrose , Alberta
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I went 92" subfloor on my 75. Mine originally was anywhere between 91 and 92.5. Any small variance will be hidden in the curve at the corners anyway.
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Old 03-25-2016, 10:39 AM   #10
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1972 27' Overlander
Orlando , Florida
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Hey Guy:

Now that I finally figured out how to find my own posts. Thanks! I went with 91.25 plywood width. I think your all right too, their is a lot of wiggle room on this as the flexibility of the shell will allow for this.

Thanks
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