2

Possible Duplicate:
How much weight can you mount to a wall?

I've only recently moved beyond yellow wall plugs and into a different style of self taping plug that's rated to significantly higher weights. These plugs advertise 80 lbs of pull out / 120 lbs of down ward pull through.

What kind of weight can the dry wall withstand before it fails? I'm looking at regular household application, so standard width sheets apply (since I'm sure the width will affect this answer).

I sort of wondered this on the metal, butterfly style plugs but at least they seemed to distribute the load on a larger section of the drywall.

In response to some of the questions, assume 16" on center, say 1/2" or 5/8" sheets. My specific application is hanging shelving (screw down strip/track, 5 screws per strip about 12-18" each apart, strips mounted 30" apart, lock in 8" hanger style arms) which I have done many times before. I'm not looking to push the envelope on how much I can get away with, I'm trying to ascertain whether the drywall would fail before the plugs would, for a better practical knowledge.

Community
  • 1
Stephen
  • 1,955
  • 3
  • 20
  • 26

2 Answers2

4

How much the drywall will withstand will depend largely upon its thickness. 1/8" drywall is pretty flimsy while 7/8" can take quite a tug.

If you're talking any more than just a few pounds, then seriously I wouldn't rely on drywall anchors - if necessary cut out some drywall and install a backer board.

The Evil Greebo
  • 25,971
  • 16
  • 91
  • 125
2

I really don't have an exact answer to the amount of weight 1/2 inch rock will hold, but practically speaking, I would not exceed more that 30 or 40 pounds per 30 inch shelf using screw type anchors. I use the screw in anchors all the time with great results, far better than the drill and tap in type. I would encourage you to try to mount the support rails to a stud, even it only on one side or center. Shelves mounted to the studs would be so much safer.

shirlock homes
  • 58,628
  • 3
  • 87
  • 168