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Advice on Filling Large Holes in Load Bearing Wall for Hanging Shelves

Postby Dauph » Fri Apr 29, 2016 3:31 pm

Greeting all!

I am trying to repair some floating shelves for a client.
They are poorly designed and fix by just leaving two screws protruding from the wall onto which the shelf slots .
The supplied screws were barely long enough to hit brick and the plaster is old and crumbly.
No surprise that the shelves failed!
I tried to use much longer screws but after drilling the holes and getting the screws in, I discovered the screw heads are to big to fit in the slot holes on the back of the shelf.
Now I have great big holes that I need to fill with something that I can drill and fix screws closer to the original sized ones that will support the weight (and more) of the shelves.
I was thinking of drilling out the holes with a 10 mm bit and filling with epoxy putty, but that stuff is quite pricey.
Anyone have any recommendations?

Many thanks
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Gorilla Glue heavy duty grab adhesive

Postby welsh brickie » Mon May 02, 2016 12:58 pm

cut a much bigger hole about 75mm in diameter and at least 30mm deep.
paint the area with a pva solution, and fill it with dry wall adhesive. Leave to set for 24hrs, sand it back level with the plaster, then drill your hole
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