Grinding an entire garage floor?


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Old 01-05-09, 06:27 PM
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Grinding an entire garage floor?

Just purchased a house and, as I've read in other posts, water from the cars pool right in front of the door going into the house. About a foot from the overhead door the floor drops 2 inches to the door seal. Is it possible, or even feasible to grind a slope into the entire garage floor to drain water towards the overhead door? I figured if I could do this I would put down an epoxy finish, or even tile, to cover the poor finish I would expect from the grinding process.

Any advice would be greatly appreciated.

Kyle
 
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Old 01-05-09, 07:12 PM
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oh yes it is possible, just check with a good local rental yard most will have floor grinders that will do the job, shouldn't need to remove much, if you remove all things that can be water damaged from the floor you could be able to place some water in the floor until it starts to drain out the door to find out just exactly how much you will need to remove,just measure the depth of the water when it starts to drain. a level will give you a idea also but make sure to check multiple spots and measure over at least 8 ft to get it correct.

the only difference between men and boys is the price of their toys
 
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Old 01-06-09, 04:29 AM
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I had a friend tell me to forget it and live with it because there was no way I could grind the entire garage floor.

I'd prefer to have it done professionally since I've never done it before but I might consider trying it.
Thanks.
 
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Old 01-06-09, 06:17 AM
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The diamond cutting grinders are so fast you won't believe you are working concrete. As for finish, you may want to do the entire floor, it looks great after grinding. All of the stones become the surface.

If the rental is too much. look at a 7" diamond cup and buy or rent a standard grinder (right angle drill type tool). Just saw a cup for $70 and you can sell it for a bit of return when done.

I've also cut groves that drain under the door seal. Regular circular saw with a diamond blade. Make your passes about 1/4" apart and tap the center and it will pop out.

enjoy
Bud
 
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Old 01-06-09, 08:21 PM
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Sounds so easy I truly believe I could really screw something up!
 
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Old 01-06-09, 09:32 PM
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You guys have obviously never done this type of work. Figure a 20x10 area that you want to grind from 0 to 2 inches. That is over 16 cubic feet of hardened concrete to be removed. An angle grinder and a diamond cup ain't gonna do it, Junior. You will need a scrabbler, then a floor grinder to get it in good enough shape to epoxy it. Plan on eating dust for a couple of weekends and 500 to 800 bucks for equipment rentals.

You can do it, but do not fool yourself that it is easy or cheap.
 
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Old 01-06-09, 10:21 PM
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where does water come from a car
 
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Old 01-07-09, 04:36 AM
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Well, I was going to consult a concrete contractor because I simply didn't trust my abilities, anyway. If it can be done I was expecting to pay in the area of 1500 bucks - hopefully. The thought of busting the old slab out and re-pouring crossed my mind but the floor is beautiful with no cracks.

Ya, the water comes from snow melt off the cars and, of course, it pools right where ya need to walk.
 
 

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