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J.Lef · Guest

The wife went out to ikea and came back with a 200 lb bookcase.
After spending the better part of 10 hours putting it together, I was
ready to mount it to wall for safety.
The bookcase will be close to 700 pounds heavy when full.
I stripped off the carpeting section, and actually took off the bottom
molding to insure a close fit.
The unit has two sort of L brackets(one at either top end )that is
attached to unit with two screws and then they expect you to mount to wall
with one large cutout hole, with a sort of washer/lock that has a big hole
and small locking hole.
For these jobs, I usually encounter a wall which is hollow after
drilling through and I would use a toggle bolt to insure the safety with
this weight.
When I starting drilling in, after about an inch, I realized I was
into something the drill bit wouldnt penetrate.
It wasnt a wood beam, thats for sure, or a wood stud.
I went to the other side of book case and tried that side(six feet
apart) and got same result. I tried two smaller pilot holes in various
locations and everything is that way, so I am assuming I am hitting
concrete/cement, as a beam I dont think would be that large.
How do I mount this unit, into concrete if that is what I am looking
at. I dont believe its brick or metal.
Thanks for any info provided. Much regards