Television Wall Mounting - Torque Considerations

[ccny62]

Hello!

I'm considering the purchase of a 100 pound LCD television. I anticipate mounting it with an articulating mounting system. The mounting system will allow the television to extend ~27 inches from the mounting wall (thereby creating a considerable torque load on the wall studs used). The mounting system requires anchoring it to 2 wall studs (2" X 4") approximately 16" apart. The wall mounting plate is only about 18" wide - to span 2 studs with a little horizontal location flexibility. The area I would like to use for the installation has only 2 wall studs available but they are approximately 24 inches apart.

I am considering:
1. bolting a couple of 1/2" thick steel rectangular pieces (maybe 4" tall) between the 2 wall studs
2.then mounting the system's wall bracket to the steel pieces through drilled holes using bolts and nuts or through threaded holes using only bolts

I really don't have any understanding of the torque implications of the above described mounting scheme as compared with the 'acceptable' torque situation in the 2 stud (16" apart) mounting.

Will the wall stud and steel bar system safely support the 100 pound television when it is 27 inches from the wall?

Do I gain anything by attaching one end of the wall mounting bracket through the steel pieces and into one of the wall studs?

Do I gain anything if I can also have the wall mounting bracked welded to the steel bars?

Any other options to safely overcome this problem installation?

I really don't want to pull the 2 wall studs through the wall board and maybe cause the wall (and maybe the house) to collapse. Less critical, but still highly unacceptable - I would't want the LCD television to come crashing to the floor. I don't think this would be covered by the manufacture's limited warranty.

In advance, thank you one and all for your suggestions.

Larry

 

[russ_watters]

Draw a picture (a free body diagram). The system is a truss and each member is either in compression or tension and it isn't difficult to analyze.

 

[ravenprp]

Hello Larry,

Thank you for reaching out to us regarding your concerns about mounting a 100 pound LCD television on an articulating mounting system. It's great that you are considering the torque implications of your mounting scheme, as it is an important factor to consider for the safety and stability of your television.

Firstly, it is important to note that the weight of the television alone is not the only factor to consider when determining the torque load on the wall studs. The distance of the television from the wall, as well as the angle of the articulating arm, also play a significant role. In your case, with the television extending 27 inches from the wall, the torque load on the wall studs will be quite high.

Your proposed solution of using steel bars to span the 24-inch distance between the two wall studs is a good idea. This will distribute the weight of the television more evenly and reduce the torque load on each individual stud. However, it is important to ensure that the steel bars are securely anchored to the studs and that the mounting system is also securely attached to the steel bars. Using bolts and nuts or threaded holes should work well for this purpose.

Attaching one end of the wall mounting bracket to the steel bars and the other end to a wall stud will provide even more support and stability for the television. Welding the wall mounting bracket to the steel bars is also a good option, as it will create a strong and secure connection.

If possible, you may also want to consider installing a third wall stud in between the existing two studs to provide additional support for the television. This may involve some extra work and cost, but it will greatly increase the stability of the mounting system.

In summary, using steel bars and securely anchoring them to the wall studs, as well as attaching the wall mounting bracket to both the steel bars and a wall stud, should provide a safe and stable installation for your 100 pound television. Always make sure to follow the manufacturer's instructions and recommendations for mounting the television, and if you are unsure about the safety or stability of your installation, it's always best to consult a professional.

Thank you for considering these torque considerations and taking the necessary precautions for a safe and secure television mounting. Best of luck with your installation!