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Pulling up tile - How to cut at threshold?

Posted on 12/6/22 at 9:15 am
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/6/22 at 9:15 am
I need to pull up some tile to lay down new flooring in one room, but the tile covers several rooms and I'd like to leave it in most of them. I can get the tiles up easy enough, but I'm nervous about cutting the ones in the doorway and leaving a clean line. They are 20x20 ceramic tiles, 1/4 or 5/16 thick.

I have a dremel and an oscillating multi tool, and I can get a grinder easy enough. I have some diamond blades for the multi tool. Should I forget about the baby tools and just go ahead and get a grinder with some diamond blades?

Is there a special lube/coolant available or just use water? Should I chance it with just a score line or go ahead and cut all the way down to concrete? Is there a good technique? Bust them and scrape, or pry/peel?
Posted by PSU2LSU
Oxford MS
Member since Apr 2011
3213 posts
Posted on 12/6/22 at 9:31 am to
Make some practice cuts on what is already down whatever method you choose. Better to ruin stuff away from the threshold that you are going to pull up anyway
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/6/22 at 9:48 am to
Yeah I'm going to do some practice cuts. I tried scoring it a little bit with the oscillating tool and diamond blade, but it took some work just to make a mark. I don't know if a better tool/blade would make quick work of it. If this is just how it's going to be then I'm not looking forward to doing it much more than I have to. I know I don't want to mess it up though.

Worst case I do have some spare tiles, and removing along the grout lines is pretty easy. If I have to do that then I'd worry about the new grout matching though.
Posted by PSU2LSU
Oxford MS
Member since Apr 2011
3213 posts
Posted on 12/6/22 at 9:50 am to
If I was doing it I would probably just use my grinder with a diamond blade and have someone with a squirt water bottle spraying as I cut. maybe have a laser set up so I keep the line straight. I have cut out quite a few toilet hole flanges in tile before putting them down and I've always used my grinder for that purpose.
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/6/22 at 10:13 am to
Thanks, I think that is what I will have to do. I only need to go the width of a doorway, but even that is looking like too big a job for the tools that I have on hand. I'll buy/borrow a grinder and practice my technique to avoid cracking/chipping tiles.

Thanks again.
Posted by Weekend Warrior79
Member since Aug 2014
20649 posts
Posted on 12/6/22 at 10:34 am to
quote:

Worst case I do have some spare tiles,

Was going to ask if you had some spares, or if you may be able to salvage some of the full tiles. I don't know how to cut a clean line on the tile already on the floor, but some water will be all you would need.

quote:

If I have to do that then I'd worry about the new grout matching though.

That is going to be the tough part if you have to replace the tiles, but if you do need to replace them I would expand the area, and regrout an entire area so it doesn't stick out as much. Consider clearing to the closest piece of furniture, or area rug. If it's a smaller room/hall, I would consider regrouting the entire area.
Posted by 9rocket
Member since Sep 2020
1631 posts
Posted on 12/6/22 at 11:53 am to
No. None of these are correct.

Is there a transition going from your tile to your new floor? Pretty much a must have in this situation. Unless you make the cuts on a wet saw it will not look acceptable at all.
With a transition you can be less perfect.

How would you get close to the jambs with a grinder?

Best solution without a transition is pull up the tiles in the doorway, cut new tiles on a wet saw so they match the adjoining tile exactly, then grout. I would not pull up more tiles than you need to. Get as close a match as possible with the grout, then traffic and dirt will take care of the rest.

With a transition strip you can use a diamond blade on a grinder with someone holding a shop vac near the blade to catch most of the dust. When you get as close to the jambs as possible, stop and carefully chip away what you need to with a chisel. Then cover the jagged, crooked edge with the transition strip.
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/6/22 at 2:49 pm to
Yes I will have a transition strip.

I realize a grinder will not get all the way to the jambs, and that I will have to do the last couple inches either with the oscillating tool or chisel as you mentioned.
Posted by 9rocket
Member since Sep 2020
1631 posts
Posted on 12/6/22 at 5:33 pm to
Well then, easy peazy.
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/6/22 at 7:08 pm to
Easy peazy for you to say (and do)
Posted by 9rocket
Member since Sep 2020
1631 posts
Posted on 12/6/22 at 8:52 pm to
No worries bruh. Be sur you wear safety glasses. Gloves would be good too.
Posted by Clames
Member since Oct 2010
18845 posts
Posted on 12/6/22 at 9:28 pm to
quote:

I have a dremel and an oscillating multi tool, and I can get a grinder easy enough.


I use a Dewalt 20V 3" cut-off tool. Available diamond blade is dry cutting, dust shroud hooks up to a shop-vac and does a very good job of controlling the dust since you can run the blade in both directions and aim the debris directly into the vacuum nozzle. It will get you a little closer to the edges than a grinder and can setup a straight edge to make a perfectly straight and even cut. Also have the added benefit of controlling the exact depth of cut unlike a grinder.
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/7/22 at 8:45 am to
quote:

I use a Dewalt 20V 3" cut-off tool. Available diamond blade is dry cutting, dust shroud hooks up to a shop-vac and does a very good job of controlling the dust since you can run the blade in both directions and aim the debris directly into the vacuum nozzle. It will get you a little closer to the edges than a grinder and can setup a straight edge to make a perfectly straight and even cut. Also have the added benefit of controlling the exact depth of cut unlike a grinder.
Hm. I do already have some dewalt 20v stuff, but I hadn't considered getting the cut off tool thinking that I could either borrow a grinder for free or buy one as I think it's a more versatile tool. But now I'm thinking I should get one since I have to trim all this LVP and the cut off tool might be better for that than a standard circular or jig. What do you think?
Posted by Turnblad85
Member since Sep 2022
4392 posts
Posted on 12/8/22 at 7:32 pm to
Cut-off tool would be a poor tool to cut vinyl plank. Imo the blade would gum up with melted vinyl and may even start smoking. For basic cuts, scoring with a razer knife and snapping works well for many types of vinyl plank. Jig saw for the squiggly cuts.

For the tile I'd use grinder/cutoff with diamond blade and shopvac to try and control the hella dust its going to kick up. Cross your fingers and slowly chisel and chip away near the jamb where the blade can't reach.

I wouldn't even try to make a clean enough cut to not use a transition.
Posted by Clames
Member since Oct 2010
18845 posts
Posted on 12/8/22 at 8:43 pm to
quote:

Cut-off tool would be a poor tool to cut vinyl plank. Imo the blade would gum up with melted vinyl and may even start smoking.


They work very well for LVL. I have used a Dremel Ultra Saw with LVL and with the general purpose carbide abrasive blade it cuts cleanly and no burning or melting in the cut. The DeWalt has a diamond abrasive multi-material blade that should work just fine for LVL.
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/12/22 at 12:04 pm to
Update, I ended up using a grinder and it was actually a lot quicker and easier than I expected. Also I figured the safest best was to just cut into the door frame to make sure I cut enough tile, and I'll go back and patch that up later.

Posted by 9rocket
Member since Sep 2020
1631 posts
Posted on 12/12/22 at 4:28 pm to
Good job. Told you it would be easy. I didn’t think about the option of cutting into the jamb when I said you had to stop short of the jamb and finish with a chisel.
This post was edited on 12/12/22 at 4:29 pm
Posted by Clames
Member since Oct 2010
18845 posts
Posted on 12/12/22 at 8:48 pm to
I would have just popped the door stops out and put them back later but that works too I guess
Posted by Korkstand
Member since Nov 2003
29044 posts
Posted on 12/12/22 at 10:18 pm to
I thought about doing that but I think I would have had to make more repairs that way.
Posted by Turnblad85
Member since Sep 2022
4392 posts
Posted on 12/13/22 at 6:37 pm to
I probably woulda removed the stops too if weren't a split-jamb. Although just cutting into them and puttying is probably faster than dealing with the stops. You might've discovered a new thing.
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