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Flat Panel to Metal Stud Wall Mount

post #1 of 19
7/20/07 at 8:18am
Thread Starter 
Hello everyone,

I would like to purchase a Pioneer 5080 and am looking at mounting it to a tilting wall mount. My house is new construction and I believe metal studs are used. That said, is it risky to wall mount an 76lbs TV to a wall with metal studs?

Any advice or info in how to go about doing this properly is appreciated.

Thanks,

Dave
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post #2 of 19
7/20/07 at 10:41am
Thread Starter 
Anyone?
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post #3 of 19
7/20/07 at 10:51am
You waited a grand total of 2 hours and 23 minutes before posting a second time. Slow down, take a pill and relax. People have lives and are busy - not everyone lives on the forums 24 hours a day.

Besides, if you take the time to SEARCH the forums you'll find this has been addressed multiple times. Click 'Search->Advanced Search' and enter '+plasma + mount + stud'. Select the 'forum from the dropdown list on the right and run the search, then start reading the results.

-drin
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post #4 of 19
7/20/07 at 10:53am
I typed metal stud mount into the search function and in five seconds turned up this thread: http://www.avsforum.com/avs-vb/showt...&&#post9255669

I hope it helps.
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post #5 of 19
7/20/07 at 11:50am
Thread Starter 
Unfortunately the most useful information that I have been able to find so far is:

http://www.avsforum.com/avs-vb/showthread.php?p=9179984

This seems kind of extreme. Perhaps someone else can advise.

Thanks again.
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post #6 of 19
7/20/07 at 11:59am
in situations like this when i was an install tech, and there was a surround, or framing to be done around the TV, we would first install a 1/2" sheet of plywood (2'x4') , sinking 4-8 lags into each of the studs (at least 2 studs possible), and then drilling through with a spade bit and putting in 3-4 toggle bolts/mollys with large washers as well. You then put the mount onto the ply with 3/8-1/2" lags. I could usually hang off the front of the mount at that point (~240lbs)....
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post #7 of 19
7/20/07 at 12:07pm
davewolfs,

Have no fear! My panel which is a 95 lbs 50", has been happily hanging off of steel studs, for about a year. I used toggle bolts, but specifically, I used Hilti toggle bolts. Each bolt is rated for something like 70 lbs, before it shears, so with the four you'll be using to hang it, you shouldn't have any problem.

I've taken a pictures, so you can see what I'm talking about...


This first picture shows the bolt and the contraption.



The contraption actually swivels so that when you drill the hole to accomodate it, the steel clip goes in first, at which point you pull it tight to the stud, using the plastic part, which is essentially a zip-tie, the end result of which is you have the clip gripping tight to the steel stud.


End result


I can't speak for any other type of toggle bolt, but this one worked well. There was actually a Hilti rep in HD, so I was able to ask him about those shear ratings and that's when he gave me the 70 lbs number, for the bolt.

I got a friend that weighs 140 to hang off of the mount, and it didn't make a peep.
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post #8 of 19
7/20/07 at 12:32pm
Thread Starter 
Quote:
Originally Posted by SeanTPatton View Post

in situations like this when i was an install tech, and there was a surround, or framing to be done around the TV, we would first install a 1/2" sheet of plywood (2'x4') , sinking 4-8 lags into each of the studs (at least 2 studs possible), and then drilling through with a spade bit and putting in 3-4 toggle bolts/mollys with large washers as well. You then put the mount onto the ply with 3/8-1/2" lags. I could usually hang off the front of the mount at that point (~240lbs)....

Thanks for the reply Sean. I am a little bit confused. I understand the plywood part, but what do you mean with regards to (2'x4') ? Are you using 2'x4' as well?

As an aside, this wall actually has a closet behind it. Would it also make sense to simply put 2 2x4's behind to the backside of the close wall and drill some long lags into them?

Thanks again,

Dave
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post #9 of 19
7/20/07 at 12:33pm
Thread Starter 
Quote:
Originally Posted by guste View Post

davewolfs,

Have no fear! My panel which is a 95 lbs 50", has been happily hanging off of steel studs, for about a year. I used toggle bolts, but specifically, I used Hilti toggle bolts. Each bolt is rated for something like 70 lbs, before it shears, so with the four you'll be using to hang it, you shouldn't have any problem.

I've taken a pictures, so you can see what I'm talking about...


This first picture shows the bolt and the contraption.



The contraption actually swivels so that when you drill the hole to accomodate it, the steel clip goes in first, at which point you pull it tight to the stud, using the plastic part, which is essentially a zip-tie, the end result of which is you have the clip gripping tight to the steel stud.


End result


I can't speak for any other type of toggle bolt, but this one worked well. There was actually a Hilti rep in HD, so I was able to ask him about those shear ratings and that's when he gave me the 70 lbs number, for the bolt.

I got a friend that weighs 140 to hang off of the mount, and it didn't make a peep.

This plastic won't become brittle over time?
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post #10 of 19
7/20/07 at 12:42pm
The plastic isn't what's holding it up... The only role the plastic serves, is to hold the clip against the wall, so you can screw the bolt in. Once that's achieved, it has no other purpose.
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post #11 of 19
7/20/07 at 12:48pm
Thread Starter 
Quote:
Originally Posted by guste View Post

The plastic isn't what's holding it up... The only role the plastic serves, is to hold the clip against the wall, so you can screw the bolt in. Once that's achieved, it has no other purpose.

Doh!

Well these look pretty nifty. What do you think would be stronger. Using these or using long lags and drilling directly into some 2x4's placed in a closet behind the wall?
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post #12 of 19
7/20/07 at 1:01pm
My only concern with the second option, is the distance you have to go from the wall to the 2x4. That sounds like it might be very stressing on the lag bolts. What's the distance you have to travel from the drywall, before you get to the 2x4?

Can you paint of picture of the layout, because I'm not seeing it.
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post #13 of 19
7/20/07 at 1:31pm
Thread Starter 
Quote:
Originally Posted by guste View Post

My only concern with the second option, is the distance you have to go from the wall to the 2x4. That sounds like it might be very stressing on the lag bolts. What's the distance you have to travel from the drywall, before you get to the 2x4?

Can you paint of picture of the layout, because I'm not seeing it.

The scene is pretty simple. Picture a wall between say a kitchen and a den. The thickness the surface of the kitchen wall to the surface of the den wall is around 6 inches.

In this case, rather then a den and kitchen we have a room and behind one of the room walls is a large closet that belongs to another room.
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post #14 of 19
7/20/07 at 2:15pm
Okay, so would the lag bolt be cantilevered out from the wood, by about 3 inches, before it hit the mount? If that's the case, then you'd have to be sure about the strength of those lag bolts, as that sounds concerning.

I can say that in my situation, the toggle bolts into steel studs are more than strong enough.
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post #15 of 19
7/20/07 at 2:32pm
Thread Starter 
Quote:
Originally Posted by SeanTPatton View Post

in situations like this when i was an install tech, and there was a surround, or framing to be done around the TV, we would first install a 1/2" sheet of plywood (2'x4') , sinking 4-8 lags into each of the studs (at least 2 studs possible), and then drilling through with a spade bit and putting in 3-4 toggle bolts/mollys with large washers as well. You then put the mount onto the ply with 3/8-1/2" lags. I could usually hang off the front of the mount at that point (~240lbs)....

Doh! 24"x36" wood! Sounds good. Any reason why you wouldn't just use Lag Bolts as shown by Guste?
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post #16 of 19
7/20/07 at 2:43pm
Guste's fasteners have a particular pullout strength. If you go to hilti they will list the strengths.

You can also use something like a #8 self-drill hex head screw into the studs. They too will have a pullout strength. Even with a 25ga metal stud you can get good strength from them.

Tim
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post #17 of 19
7/23/07 at 8:01am
Quote:
Originally Posted by davewolfs View Post

Doh! 24"x36" wood! Sounds good. Any reason why you wouldn't just use Lag Bolts as shown by Guste?

You would most likely be fine with just lags, but as a lot of the situations i was installing in were high traffic, or at times over peoples sitting areas (lcds or plasmas on walls in cubical areas in office buildings), i felt safer with adding the extra support of the toggle bolts.
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post #18 of 19
7/23/07 at 9:04am
Thread Starter 
Quote:
Originally Posted by SeanTPatton View Post

You would most likely be fine with just lags, but as a lot of the situations i was installing in were high traffic, or at times over peoples sitting areas (lcds or plasmas on walls in cubical areas in office buildings), i felt safer with adding the extra support of the toggle bolts.

Sorry for the confusion.

What I meant was, using a method where you cut out the sheetrock. Attach a piece of 1/2" ply with toggle bolts and then screw into this with lags vs simply using lag bolts.

I am wondering if using a sheet of ply directly into the metal studs is over the top or if it is the safest method available.
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post #19 of 19
7/24/07 at 5:11am
Quote:
Originally Posted by davewolfs View Post

Sorry for the confusion.

What I meant was, using a method where you cut out the sheetrock. Attach a piece of 1/2" ply with toggle bolts and then screw into this with lags vs simply using lag bolts.

I am wondering if using a sheet of ply directly into the metal studs is over the top or if it is the safest method available.

i think lags into the studs, and then lags into the plywood for the mount would be fine, or lags through the mount, directly into the studs might be ok (might work if your studs fall exactly where you want your tv mounted, but usually they dont, and thus the reason for the plywood) i just dont trust metal studs that much anyway..

I attached a crude pic of what im suggesting. You would then put lags through the mount into the plywood. It might be a little overkill, but id rather spend the extra time and $20 to know for sure that my $1500+ tv doesnt fall of the wall. TV falling off the wall = worst WAF factor of all time.
LL
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