TV wall bracket -- loading on a nog?

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blair003

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#109793 26-Sep-2012 22:52

I purchased a wall mounting bracket for my second TV (a 37" samsung LCD) from jaycar today. It was a bit of an impulse buy - I have been after a bracket with a tilt and this one has a 180 deg swivel... and I happened to be in the shop.

So get it home, open it up and the instructions call for each end of the wall plate to be attached to a stud. But the wall plate itself is only 450mm wide whereas IIRC the standard size between studs here is 600mm, so this bracket must be made for another country.

I was considering attaching the wall plate by putting 3 bolts in a nog and 1 in the stud that will reach. Do you think this will be sufficient to bear the load, or should I return the bracket?

(Also, presumably if I go ahead the 3 bolts in the nog be on the top of the wall plate rather than the bottom?)

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#691992 27-Sep-2012 07:45

The problem would be how the nog is nailed to the stud. Thats where it would move so it does not matter how many screws you use to attach the bracket to it, you still have the same load on it. Personally I would return it and get one that is right for your stud spacing.

The other alternative is to fix some timber/board to the studs and then the bracket to that. Timber would not look great but something like tri-board might be ok.

wallop

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#691994 27-Sep-2012 07:48

I take it that the wall is already lined. If not you could strengthen the nog with brackets or a piece of timber under it.

timmmay

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#692002 27-Sep-2012 08:02

Yeah if you want to open the wall you can notch out the timber and put 1cm plywood across the whole area of the TV, attached to a couple of studs. That way you can put the TV anywhere, and it becomes structural. I'm not a builder though, so seek professional advice.

I had to have an internal wall rebuilt to take my 55" TV (the wall was poorly built), once that was done and the bracket put up the builder hung from the bracket for a while to show how strong it was. It wasn't going anywhere!

Jaxson

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#692011 27-Sep-2012 08:43

Yeah as above. You can mount a board across the two studs, but you'd want to go back and buy a bigger TV to cover it...

1 stud and 1 dwang should be enough, but often the dwangs are not located in a useful position, floor to ceiling wise, for mounting a TV.

A 37" lcd probably doesn't weigh that much. If you're mounting it, how are you getting power cables to it? Obviously if you're cutting holes in the wall to lay cables then there's an opportunity to strengthen the area. Plaster and painted surfaces are much easier to cover than pattern wallpaper....

NonprayingMantis

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#692018 27-Sep-2012 08:56

I have mounted a 37" TV with the bracket attached only to one stud, the the other end into the jib with some of those heavy duty expanding thingys.

As long as you don't lean on your TV, it is fine. a 37" TV doesn't really weight very much at all.

richms

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#692309 27-Sep-2012 15:14

Thats the problem with imported brackets.

Return it and get one suitable for use in NZ

Richard rich.ms

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berry

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#692323 27-Sep-2012 15:37

The nog will be plenty strong enough! Have you actually checked the studs? If you're in an older house the studs will likely be at 450mm ( a foot and a half) anyway.

Tv's aren't that heavy - we have a 47" LED on one of those brackets - we put nogs across at the height we wanted it when we renovated and it was held up by only 2 bolts for a while.

MikeSkyrme

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#692334 27-Sep-2012 16:13

Double check your stud centers. If not spaced at 600mm, they should be at 400mm, to allow for the fitting of plasterboard, you may be lucky.

Otherwise, as per previous posters, take the lining off, drill holes for cables and strengthen the wall.... or change the bracket.

Michael Skyrme - Instrumentation & Controls

richms

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#692341 27-Sep-2012 16:24

TVs are quite heavy if it is a bracket that extends some way from the wall to allow tilting etc.

Richard rich.ms

blair003

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#692372 27-Sep-2012 17:30

The house is about 10 years old and yeah the wall is lined. I have no idea about how the nog is nailed to the stud but I checked the studs and they are further than 450mm apart, at least on this section of wall which is just inside the front door.

I was just going to run cables up the wall and see what that looked like first (not planning to run in wall.. its a second TV and there is a unit below the TV to hide most of the cables).

When I first found out I was thinking I would just mount it (thinking logically I could do 2 bolts into the stud, and another 2 or 3 into a nog) but per richms TVs the reason I posted is that the TV becomes pretty heavy when you are using a bracket that has an arm that extends out. Also with the rotation up to 180deg, the forces won't be applied evenly to the bolts on the base.

So I think I will return it tomorrow and get something more suitable. Thanks for the replies.

chevrolux

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#692383 27-Sep-2012 17:57

How many tek screws/coach bolts do you want to use? I have a 55" TV hanging off 3 tek screws and one 'gib anchor' no problem. I was able to get two in the stud and one in a nog and then use a GIB anchor to do the last one. My bracket has the TV about 50mm out from the wall but it isn't on an arm it is just a flat bracket with tilt. The anchor looks like a big cork screw which you wind in the wall and then a smaller screw goes inside the anchor. Supposedly you can hang 15kg off one of them but I am prrety certain the top tek screws are taking most of the weight and the bottom ones are just stabilising it. I wouldn't be too concerned about how the nog is nailed. You aren't going to be breaking one any time soon unless it has zero nails in it.

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NonprayingMantis

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#692387 27-Sep-2012 18:23

blair003: The house is about 10 years old and yeah the wall is lined. I have no idea about how the nog is nailed to the stud but I checked the studs and they are further than 450mm apart, at least on this section of wall which is just inside the front door.

I was just going to run cables up the wall and see what that looked like first (not planning to run in wall.. its a second TV and there is a unit below the TV to hide most of the cables).

When I first found out I was thinking I would just mount it (thinking logically I could do 2 bolts into the stud, and another 2 or 3 into a nog) but per richms TVs the reason I posted is that the TV becomes pretty heavy when you are using a bracket that has an arm that extends out. Also with the rotation up to 180deg, the forces won't be applied evenly to the bolts on the base.

So I think I will return it tomorrow and get something more suitable. Thanks for the replies.

ah, yes if you are using an extendy type arm mount then you definitely need a stronger fixing. bugger!

blair003

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#692409 27-Sep-2012 18:58

chevrolux: How many tek screws/coach bolts do you want to use? I have a 55" TV hanging off 3 tek screws and one 'gib anchor' no problem. I was able to get two in the stud and one in a nog and then use a GIB anchor to do the last one. My bracket has the TV about 50mm out from the wall but it isn't on an arm it is just a flat bracket with tilt. The anchor looks like a big cork screw which you wind in the wall and then a smaller screw goes inside the anchor. Supposedly you can hang 15kg off one of them but I am prrety certain the top tek screws are taking most of the weight and the bottom ones are just stabilising it. I wouldn't be too concerned about how the nog is nailed. You aren't going to be breaking one any time soon unless it has zero nails in it.

Where did you get the GIB anchor from?

I'm kinda tempted to try using 2 bolts into one stud, 2 into the nog (along the top) and a couple of heavy duty toggle bolts/GIB anchors on the bottom. I will weigh the TV when I get home.

If bolting this plate to two studs can give you full extension of the arm (the arm must come out a couple of feet at full extension to allow the 180 deg swivel) then surely doing it as above would allow me the 20 degrees of rotation I'm after to tilt the TV toward the kitchen..

chevrolux

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#692413 27-Sep-2012 19:08

They look like this and I just got it from Corys electrical but pretty much all the trade stores have them. There is a plastic version but they suck something terrible so only get the steel ones.

I think mounting it the way you say will work fine. Just get dead in the middle of the wood (use a 1mm drill bit to find the edges) to make sure you get full effect of the tek screw.

Jaxson

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#692414 27-Sep-2012 19:09

blair003:

I'm kinda tempted to try using 2 bolts into one stud, 2 into the nog (along the top) and a couple of heavy duty toggle bolts/GIB anchors on the bottom.

Like chevrolux says, 2 tek screws or coach bolts in the stud and a few in the dwang oughta do it.

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