Garage floor uneven

[SuzukiGS750EZ]

Building a room in the garage. Sheet rock, framing and everything else is done. Onto the floor now. In my infinite wisdom, I built a wall overtop part of the concrete slab. So raising it with poly is out of the question. What I did to combat the unevenness is I built a riser of sorts out of blocking of different lengths which when assembled created a level surface to build the wall on. That portion got anchored into the concrete.
I’m thinking I can mix some concrete and level it but can’t make out on my head how I’d guarantee it’s level. I have self leveler but would like to get the floor somewhat up to level before using it. Taking a straight 2x4 from the center of the garage to the area that’s sunk, it looks to be about 1.5-2” out of level. I don’t want to add concrete and go too high with it. I could pivot the 2x4 from a level surface but I’m sure there’s a better way. Any ideas?

 

[billconner]

I'm confused. Are you trying to level the wall you built or the floor? Are you just wanting a more level floor in this room you built within the garage?

 

[PCustoms]

I'm confused. Are you trying to level the wall you built or the floor? Are you just wanting a more level floor in this room you built within the garage?

Same here.

Also, level and flat are 2 different things.

 

[SuzukiGS750EZ]

The wall is already built. Everything in the garage is set. I need to put down lifeproof flooring and floor cabinets so I’d like it as level as possible. I was thinking get the low spots up as high as possible with concrete and then use floor leveler but was unsure if it would work well and if so, how do I get the concrete as flat and level as possible. It’s only in the lower 1/3 of the garage closest to the driveway. I bracketed the garage door to the framing and built a wall behind it. The portion of the garage I’m talking about is on the wall/driveway end of the garage.

 

[PCustoms]

The wall is already built. Everything in the garage is set. I need to put down lifeproof flooring and floor cabinets so I’d like it as level as possible. I was thinking get the low spots up as high as possible with concrete and then use floor leveler but was unsure if it would work well and if so, how do I get the concrete as flat and level as possible. It’s only in the lower 1/3 of the garage closest to the driveway. I bracketed the garage door to the framing and built a wall behind it. The portion of the garage I’m talking about is on the wall/driveway end of the garage.

You're still not describing your issue well

Do you have wavy, uneven concrete?

Or is your floor sloped towards the door?

 

[billconner]

gypcrete

 

[SuzukiGS750EZ]

You're still not describing your issue well

Do you have wavy, uneven concrete?

Or is your floor sloped towards the door?

Ah. My mistake. The floor has cracked unevenly and settled towards the door. Holding a 2x4 on level concrete the board hangs about 1.5-2” above the portion of the floor I’m talking about.

 

[Fav Onefour]

You are trying to level a floor that has known settling?
Is it possible that the original slab was sloped on purpose? That is fairly common. I sure hope that is the case in your situation.

I don't know if you will get much in the line of a simple solution. The 1.5-2" amount is way too much for a floor leveling compound. There are quite a few options, but none are that simple.

BTW, the flooring you are talking about needs an incredibly flat floor. If the floor is actually stable, your leveling still needs to be extremely flat. Slope is a different story and won't create the problems. If the floor is still settling, that flooring will be tough. I like the flooring and it works fairly well, but it's stiff and needs flat surface to properly interlock and hold. I level and grind down finishing swirls and door/room transitions flat as possible before doing that flooring.

 

[billconner]

I think you can go 3" deep with gypcrete, so this one would be easy.

 

[SuzukiGS750EZ]

You are trying to level a floor that has known settling?
Is it possible that the original slab was sloped on purpose? That is fairly common. I sure hope that is the case in your situation.

I don't know if you will get much in the line of a simple solution. The 1.5-2" amount is way too much for a floor leveling compound. There are quite a few options, but none are that simple.

BTW, the flooring you are talking about needs an incredibly flat floor. If the floor is actually stable, your leveling still needs to be extremely flat. Slope is a different story and won't create the problems. If the floor is still settling, that flooring will be tough. I like the flooring and it works fairly well, but it's stiff and needs flat surface to properly interlock and hold. I level and grind down finishing swirls and door/room transitions flat as possible before doing that flooring.

The slope would make sense and i almost assume it would but no, it's cracked. Out of a 21L x 11W room, 5 feet out from one end and 4 feet to one side is about the crack. And a few small ones here and there i can handle.

 

[Armorpoxy]

Hi, we published a while back on how to level. Use a laser an measure all around the floor with a stick and the amount are off-level is the amount of leveler you need to add. Instead of the pins mentioned, you can hot glue upside down cut golf tees and pour the leveler up to the top of the tee!

Floor Leveling Technique

There have been many posts here about how to level uneven floors, or how to re-pitch them so we thought we would pass on some helpful info. Our www.prep-crete.com Division does hundreds of thousands of square feet per year of leveling, so we have quite a bit of experience with this. The only...

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