Concrete FAQ

What are the concrete floor requirements of my lift?

2-post lifts (under 12,000 LB. capacity): Four (4) inches of concrete at 3000 PSI 12,000 pound two-post lifts (and higher capacity): Six (6) inches of concrete at 3000 PSI is required.

Do I need thicker concrete under the posts?

No, our listed concrete requirements are sufficient for the entire area of your lift.

How long should I let my concrete floor cure?

You may install/anchor your lift (4) days after the concrete has been poured. You must wait a total of (7) days before using the lift to its rated capacity.

How do I determine the thickness of my garage floor?


If I need to cut out my existing concrete and pour a new pad, how thick should I pour it?

The new pad should be at least 4' x 4', and 10" thick. The new concrete pad should have rebar installed into the new pour, and into the sides of the existing concrete slab.

How large of a stand-alone concrete pad is needed for an outdoor lift?

Your concrete slab should be at least two feet longer and wider than the posts’ four columns, to offer maximum stability. The lift may or may not be anchored to the slab depending on the lift's weight capacity. Optimally, the concrete slab should be the same size as the floor of a normal garage for either a two post or four post lift.

I have a slope in my garage floor. Do I need to be concerned?

To allow for water drainage, many garages have a 1" to 2" slope from the back of the garage to the front. This minimal slope will not affect the safety or lift capacity of your lift. Four post lifts (with lock ladder columns) can be easily leveled. The lock ladders' locking positions may be adjusted so that the runways will be level when raised and/or in their locked positions. Columns can be shimmed with plastic or metal shims. Note: If the column is to be mounted with anchors, make sure to use extra length anchors to compensate for the shimmed area above the concrete.

Can concrete anchors be used if my garage had in-floor heating?

Yes, but you need to determine the hot water pipe configuration in your floor. If you are pouring a new concrete floor with hot water heat, then allow sufficient room for the columns to be installed. If you have in-floor heating already installed and do not have an accurate installation diagram; spray a small amount of water on your floor and turn the heating system to the highest setting. You may be able to see the outline of the heat pipes as the floor water begins to evaporate. Drill where it is wet, dry areas indicate a heat pipe underneath.