I am attempting to hang some wire shelves in my utility room, which is in the basement. The wall is the concrete foundation and the drill bit I bought barely puts a dent in it because it is such solid concrete. I was thinking of gluing a couple 2x4's on the wall horizontally with liquid nails then fastening my shelf hardware to the 2x4's. Would the the liquid nails (for concrete) be strong enough to hold two 8 ft wide x 16 in. deep shelves? I don't plan on putting anything too heavy on them but 100 lbs each shelf would be likely. Perhaps I should drive a couple concrete spikes/nails in as well? Would I use the spike/wedge type or regular type of concrete nail to penetrate such dense concrete?

 

I don't build houses everyday, but as a side job I like to flip houses. From my experience, my gut says that it probably won't work. Have you tried the TapCon drill bit with the TapCon locking screws? They have always worked well for me, even with the "stubborn" concrete.

 

Yeah, I have the Tapcon screws and 5/32 bit. My original problem was drilling the holes. I realized I should probably use my hammer drill and it did the trick. I new I bought that thing for something.

 

Yah! I luv when that happens!

 

Funny how that stuff works, isn't it? Glad you got it, and thanks for sharing the grin!

 

Aren't we always suppose to LOOK for reasons to buy new tools? ...

 

Nothing like the right tool for the job

 

I "knew" (sorry). I actually bought it a couple years ago because I needed a heavy duty drill to mix thinset and this one happened to have a hammer drill option on it. Worked like a charm. Adding a quad receptacle today and I'll have a pretty decent workspace.

 

We "new" what you meant