If this is a 2-post lift, that usually calls for 6" of concrete. 4" is fine
for a 4-post lift.
If you're planning to store your car, what you want is a 4-post lift that
supports the car on its wheels so that the suspension is not at droop during
storage. You can still do 'wheels off' work with a rolling jack or jack
trays and bottle jacks.
I have a Direct Lift 4-post lift from Greg Smith Equipment. The lift is
perfectly adequate, and I think it's a good value for the money. My Lotus
is currently hibernating on it and I park my daily-driver TDI underneath it
every day.
-Paul
On Tue, Oct 28, 2008 at 10:39 AM, Jim Stone <jandkstone99@msn.com> wrote:
> My garage was designed with high walls and a cathedral ceiling to one day
> accommodate a home lift system. I don't need one just yet, but am always
> keeping my eyes open for a bargain that would make me pull the trigger
> faster.
> There is an auto shop closing about a mile from my house and they are
> selling
> their 10,000 lb commercial lift. It is far more than I will ever need, but
> they are currently asking $1000 and need it gone by tomorrow, so they would
> probably take less. However, I just checked the architectural plans on my
> garage floor and here is what it says about the floor:
>
> 4" concrete slab with 6 x 6 x W1.4 x W1.4 W.W.M. on gravel fill as
> required.
>
> I don't understand anything after "slab", but this doesn't seem like much
> to
> me. Should I forgo the commercial lift at any price? Will I be ok with a
> lighter weight one? It only needs to be able to lift and store a Sunbeam
> Alpine, so 10,000 lbs is way overkill.
>
> Thanks.
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