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I'm trying to mount an 85" TV (105lbs) on a swivel mount to metal studs behind two layers of 5/8" sheet rock. I believe the metal studs are 20ga, but not sure how to confirm. Additionally, the swivel mount can fully extend to about 24.5 inches.
The plan is to use Snaptoggle bolts, which have a pull out rating of 464lbs with 25ga studs and 5/8" sheet rock. (See table below from the manufacturer.)
After crunching some numbers, the total force pulling on the top part of the bracket should be no more than 350lbs under static load. That force would be distributed over 2 anchors for 175lbs each, which is less than half the rating for the toggle bolts (which was rated on a less sturdy construction than what I have). Is that leaving enough room for any additional force due to swiveling the TV around?
Also, is there anything else I'm not considering? For example, will the bottom edge of the bracket dig into the drywall and cause it to fail? Do I need to consider any flexing in the metal studs? Will they be able to keep straight with that kind of force pulling on them?
The plan is to use Snaptoggle bolts, which have a pull out rating of 464lbs with 25ga studs and 5/8" sheet rock. (See table below from the manufacturer.)
After crunching some numbers, the total force pulling on the top part of the bracket should be no more than 350lbs under static load. That force would be distributed over 2 anchors for 175lbs each, which is less than half the rating for the toggle bolts (which was rated on a less sturdy construction than what I have). Is that leaving enough room for any additional force due to swiveling the TV around?
Also, is there anything else I'm not considering? For example, will the bottom edge of the bracket dig into the drywall and cause it to fail? Do I need to consider any flexing in the metal studs? Will they be able to keep straight with that kind of force pulling on them?