Custom Installation
One thing I was considering before the MaxJax was to cut out the center concrete and pour in a dropped concrete pad to lower the mid-rise lift. The advantages of this are several, you won't need any additional ramps for parking over the lift and without those ramps it will open up much more of the floor when working under the car. I've seen pictures of this being done and it looks slick. It does give up the "moveable" capability of the mid-rise if you wanted to easily move to another garage bay.
But now considering the open floor capability of the MaxJax I'm not sure the additional effort is worth it. Considering the average price of a mid-rise lift maybe being $150-$350 less, if you contracted for this concrete work you would have a more costly solution. Even if you did the custom pad as a DIY project with rented concrete tools and delivered concrete you might break even, but still would give up some access to the center area of the car. The further consideration on the MaxJax is that you can set up different bays with different width post settings and reuse anchors by rotating the post 180 degrees. You'll have to supply and of course install additional anchors.
So if I already had a working mid-rise lift I think I might drop in a custom pad, but if evaluating for new purchase between these two and considering the additional work I think I would advise to go with the MaxJax and skip the concrete work.
Conclusion: Custom install maybe not a great choice for new lift buyers
One thing I was considering before the MaxJax was to cut out the center concrete and pour in a dropped concrete pad to lower the mid-rise lift. The advantages of this are several, you won't need any additional ramps for parking over the lift and without those ramps it will open up much more of the floor when working under the car. I've seen pictures of this being done and it looks slick. It does give up the "moveable" capability of the mid-rise if you wanted to easily move to another garage bay.
But now considering the open floor capability of the MaxJax I'm not sure the additional effort is worth it. Considering the average price of a mid-rise lift maybe being $150-$350 less, if you contracted for this concrete work you would have a more costly solution. Even if you did the custom pad as a DIY project with rented concrete tools and delivered concrete you might break even, but still would give up some access to the center area of the car. The further consideration on the MaxJax is that you can set up different bays with different width post settings and reuse anchors by rotating the post 180 degrees. You'll have to supply and of course install additional anchors.
So if I already had a working mid-rise lift I think I might drop in a custom pad, but if evaluating for new purchase between these two and considering the additional work I think I would advise to go with the MaxJax and skip the concrete work.
Conclusion: Custom install maybe not a great choice for new lift buyers

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You are correct that the lift will be X off the floor before it catches the lift points on the car. I just measured the car height, not really thinking it all the way through. Ours has subframe connectors, so take maybe 6" off the total. I'll re-measure when I get a chance, maybe tonight. Where'd I put that 5' dial caliper....
