Mounting TV to Wall with Plywood - AVS Forum | Home Theater Discussions And Reviews
Forum Jump: 
 
Thread Tools
post #1 of 7 Old 09-21-2007, 12:33 PM - Thread Starter
Newbie
 
terserterser's Avatar
 
Join Date: Aug 2007
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Hi,

Newbie here. Would forum members be kind enough to provide guidance please?

I will be mounting a 46" LCD or plasma to a wall. Behind the drywall of this wall, where the TV/mount will be placed, there is plywood (instead of studs).

The mount comes with 2.5" screws, designed for mounting to wall studs. Should I use a different kind of screw, because of my plywood?

For example, my drywall plus the plywood will only be about 1.25" total. Would the 2.5" be inappropriate and somehow weakens the support?

Thanks!
terserterser is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 09-22-2007, 11:56 AM
AVS Forum Special Member
 
Stew4msu's Avatar
 
Join Date: May 2001
Location: Wylie, Texas, USA
Posts: 6,990
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 23
Aren't there studs behind the plywood?

I don't think I'd mount it to just drywall and plywood.

"The dream never dies, just the dreamer."

Stew4msu is offline  
post #3 of 7 Old 09-22-2007, 12:38 PM
Newbie
 
mustardayonnaise's Avatar
 
Join Date: Sep 2007
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
eek. yeah, i don't know much about HT installation but I know a thing or two about structural integrity. a 46" lcd + mount will be at least 70-80 lbs- that'll torque right thru your drywall + plywood. you're probably gonna have to find some additional way to reinforce the wall.
mustardayonnaise is offline  
Sponsored Links
Advertisement
 
post #4 of 7 Old 09-23-2007, 06:45 PM
AVS Forum Special Member
 
jwatte's Avatar
 
Join Date: Jan 2007
Location: Redwood City, CA, USA
Posts: 1,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 13
That depends on the thickness of the plywood. If it's 3/4", it might hold. That depends what's holding the plywood up? Fasteners for plywood are typically of the "expander" or "anchor" point of view, where you insert some kind of flip-out through a hole, and then screw in the screw so that the anchor fastens to the backside.

I'd have an engineer look at that wall, though, before doing anything. It might be cheaper to just rip it out, put in studs between floor and ceiling, and patch up the wall. That would likely be < $1,000. And you could probably build a recess to put the TV in while you're at it :-)
jwatte is offline  
post #5 of 7 Old 09-24-2007, 05:29 AM
Newbie
 
Sunrisepilot's Avatar
 
Join Date: Sep 2007
Posts: 7
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
I mounted my 42" plasma using 2 1"x4" oak strips (solid oak board) spanning 3 studs ... used lags (2 for each stud) into the studs; and a lag for each hole into the strips for the tilt mount.... been up 4 years no problems.

Cheers
Doug

ps

I tried hanging off the oak strips before I hung the mount and they held my weight (200 lbs)
Sunrisepilot is offline  
post #6 of 7 Old 09-24-2007, 02:31 PM - Thread Starter
Newbie
 
terserterser's Avatar
 
Join Date: Aug 2007
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Thanks everyone for the replies thus far. There are some studs behind the plywood. They just may not be in the "correct" positions for the TV mount. In other words, I may not be able to screw in the mount where the studs are.

Any further guidance or experience to share would be greatly appreciated. Thanks very much!
terserterser is offline  
post #7 of 7 Old 09-24-2007, 08:04 PM
AVS Forum Special Member
 
Stew4msu's Avatar
 
Join Date: May 2001
Location: Wylie, Texas, USA
Posts: 6,990
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Liked: 23
Then, as sunrise pilot suggested, you'll probably need to screw in horizontal "studs" to the actual studs and then afix the mount to them.

"The dream never dies, just the dreamer."

Stew4msu is offline  
Sponsored Links
Advertisement
 
Reply General Home Theater & Media/Game Rooms

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off