On Sep 10, 7:57 am, hobbes wrote:
Hi,

I was just wondering how heavy a weight you can support on Sheet Rock.
In particular I am trying to solve the issue of mounting a TV on a
wall which has
metal studs.

From what I can see,Sanusand Bredford say do nto do it. Peerless and

Chief
say O.K. with their Toggler wall mount kit.

Does anyone have any comments?

I also did some research. Toggler kits from Peerless can be obtained
from Home Depot by buing 1/4 inch toggler fasteners. Go for the No. BB
version. 1/4 inch bolts. They require the same hole size as the 3/16
inch BA.

As for how much weight these guys can support you need to do some
scientific testing. Fortunately Cornell university has done that for
you.

http://www.cornellaging.org/gem/prod...-bar_data.html

They tested wall fasteners in sheet rock. Aparently there is a 250 lbs
dead load architectural standard. This means a constant downward force
of 250lbs. More than enough for most TVs + stands. Cornell compiled
the data for testing bathroom grab bars for the elderly.

Four toggler bolds in sheet rock (no studs), could support 250 lbs and
passed the test. The 4 bolts failed at 360 lbs, the sheet rock broke
down was the failure mode.

So I guess tv monting onto metal studs is porbablly O.K., despite the
warnings from some mount manufacturers.

Best, Mike.

Hey Mike. I have installed countless # of peerless mounts and worked
long and hard with Peerless' tech team regarding metal studs. They
assured me using flat and tilting mounts, 4 toggeler bolts are more
than enough for TV's up to 60". However, when it comes to pull out
swivel or swing arm mount, you will have to span another stud. Looks
like up to 40"- you will be using two studs. 42" + you will be
spanning/mounting to three studs (still using the toggeler bolts). I
have installed Peerless mounts for years and have never had a single
issue on metal studs as long as their guidelines are properly followed
(which are very basic). Hope this helps! -Jim