I'm putting up hooks on the tile wall in my bathrooom. I have to use hollow wall anchors because the tile is over drywall or possibly cement board. But, I'm having a problem. I've used these types of anchors in drywall many, many times with no problem.
But with the tile, after I drill the hole the anchor won't fit into it. If i try to pound it in with a hammer the anchor just breaks. I'm using the drill bit size called for with the anchors. With drywall the anchors are able to bite into the wall some, but they can't do that with tile, hence they don't fit. There must be an obvious solution to this, but I can't figure it out. drilling a bigger hole would be an option, but I don't know how much bigger to go and it would seem that this should be something that would be mentioned on the anchor packaging.
Is there a particular type of anchor for tile walls that I don't know about?
Best Answer
Drywall anchors depend on making the hole a little bigger as they are inserted. This is a good thing, because drilled sheetrock holes may have chunks missing and the gypsum is not necessarily compacted. Inserting the anchor compresses the surrounding gypsum and makes it stronger.
Tile is, of course, not flexible or malleable, so you'll have to drill a slightly larger hole through it. To get maximum holding power, use two bits. The smaller one all the way through, followed by the larger one just through the tile with minimum drywall contact. Without knowing which kind of anchor and its size, I can't tell you what size bits to use. I would experiment by trying 1/64 inch larger increments until the anchor slides through normally.