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Old 12-29-2011, 01:41 PM   #15
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Originally Posted by beckybillrae View Post
The TV weighs 18.8 lbs and the mount with an articulating arm weighs 12.6 lbs. It would be strapped shut while traveling, but I'm afraid the footprint of the mount (about 6" square) would be too much for 1/4". The mount is made for an RV.
Yup; I'd be worried about hanging 30 lbs offset from the wall on a 6" tall mount in a bouncing trailer as well. The wall itself can easily handle both the vertical load and bending loads, of course; you just need to reinforce where the mount connects so the load is tied into the wall over a larger area. I don't know how you're handling the shower; can you bolt/screw through the wall, or is epoxying something to the surface the only option? What "look" are you trying for in the trailer? We went with varnished (well, polyurethane) birch plywood and aluminum corner moldings, etc; exposed stainless fasteners don't look out of place so this made some things a little easier. If you're striving for more of a cabinet maker's dream, you've got different constraints.

- Bart
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Old 12-29-2011, 02:52 PM   #16
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Yup; I'd be worried about hanging 30 lbs offset from the wall on a 6" tall mount in a bouncing trailer as well. The wall itself can easily handle both the vertical load and bending loads, of course; you just need to reinforce where the mount connects so the load is tied into the wall over a larger area. I don't know how you're handling the shower; can you bolt/screw through the wall, or is epoxying something to the surface the only option? What "look" are you trying for in the trailer? We went with varnished (well, polyurethane) birch plywood and aluminum corner moldings, etc; exposed stainless fasteners don't look out of place so this made some things a little easier. If you're striving for more of a cabinet maker's dream, you've got different constraints.

- Bart
Of course, I'm looking for the David Winnick effect! I can bolt through the wall to the shower with SS. I'm planning on using sheet plastic on that wall of the shower (it kinda has a bumpy, white, commercial look). Maybe I can spread the weight out more by making a larger frame to attach the mount to..... I like HiHoArgRV's idea too.....decisions, decisions. If only I wasn't addicted to a bit of TV before going off to sleep (and movie night with some of the extended family)
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Old 12-29-2011, 03:59 PM   #17
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Sandwich wall construction

I agree. Glue " thick x 1" wide vertical strips of wood spaced 9-12" apart onto one surface of the plywood and then glue another " sheet of plywood to the strips. Use Gorilla glue and it will will be plenty strong and much lighter too. I don't think another F channel will be required for the new sheet of plywood.
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Old 12-29-2011, 04:54 PM   #18
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I agree. Glue " thick x 1" wide vertical strips of wood spaced 9-12" apart onto one surface of the plywood and then glue another " sheet of plywood to the strips. Use Gorilla glue and it will will be plenty strong and much lighter too. I don't think another F channel will be required for the new sheet of plywood.
The idea is sounding better......I wouldn't have to have any hardware in the shower if I went this way....
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Old 12-29-2011, 08:29 PM   #19
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Becky,
I was worried about the same thing. BUT, my TV is just a 22" with a non swivel bracket...maybe 12 lbs total.

I did back up the stock wall (pocket door wall...1/4"?) with a piece of 1/4" aluminum and all is good. No structural issues after traveling for one season.

I agree with Bart's....3/4 is overkill but I think 1/4" might not do it with your weights. Just by SWAGing, I'd go 1/2".
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