Wavy Floor (to say the least)!

[hemiredneck]

My foundation guy is awesome at pouring a foundation...the forms were nice and straight and the foundation was square down to 3/8 of an inch. The framer even commented on how good it was and how it made his job very easy with the sill setup, shimming, etc. Having the same guy pour my slab because he is "not too bad" at it (besides he was cheap) maybe was'nt the best decision on my part. I'm bummed. After spending some time on the floor and walking around, I'm noticing some issues. And this time I don't think I'm being too picky.

I had thoughts of ripping up the whole slab and starting over. I guess that's why I'm here talking about it...If anyone has any other suggestions I would love to listen.

Not that I'm planning on building race cars in here or run a machine shop, but I was having a hard time just laying out some 2x4s to stud out a wall. There are certain things you do in a garage and you rely on the floor to be flat. I do a little welding and fabbing and I can't imagine laying out a steel frame or channel and expect it to come out anything other than warped.
Help!

 

[bobemmerich]

I would have the guy come out and check it out. Did they give any type of guarantee?

 

[hemiredneck]

I apoligize in advance for the crudity of the picture layout, my technical advisor (wife) is out and I tried doing it myself. I will try to fix it.

 

[RECox286]

This is one reason many welders do a layout on a "setup" table. That way

the

finished projects are not 'aerodynamic' looking all the time.

Looks like you have plenty of room for a 'first project' er, that is a welding table.

Actually, you shouldn't weld or cut on concrete, it can and will spald.

Uncle Bob

 

[ConCretin]

To give you a frame of reference for evaluating the flatness of your floor. A very good floor should not vary more than 1/8" from a 10' straightedge. An average floor would be closer 1/4".

It appears your floor is significantly less flat and would not be acceptable in a non-residential application.

Unfortunately, even if you can get your contractor to fix the floor, it will never look like an un-repaired slab.

Sorry you didn't get what you bargained for.

 

[pinebarkauto]

I have no first hand experience with "floor leveling", but I am constantly contacted by contractors offering to come in and repair my damaged concrete floors with a leveling compound before applying epoxy. Maybe something like that would work. I am sure it is not be cheap, but suspect it would be cheaper than breaking up your floor and repouring. Chip.