Tile – Filling big horizontal gaps in bathroom tile

bathroomceramic-tilegap

This is one of our first DIY projects, thank you in advance for your help!

We removed an old baseboard of the heating system in the bathroom and were left with a horizontal gap in the tiles. As you can see, the gap between the tiles and the drywood gets up to about 1 3/4" at its widest point.

We heard about grout, epoxy grout, acrylic grout, silicone and other options.

Which one should be best for this case?

Picture with ruler
Another angle

Best Answer

Grey, sanded. 'black' is easy: #60 charcoal.

I'd grout it first though. I've had luck with a grout line that wide, and it was a wood-to-tile threshold nonetheless. A 1/2"-plus deep and ~2" wide? I'd go for it; that will seal the gap better too. Then base and quarter round.

I'm an all-or-nothing type of guy, but that's way too much all to get excited about what will end up being a slightly too wide grout line along the trim, of an otherwise serviceable tile job. - When you gut the bathroom though....