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Proper Lift Installation—Floor Requirements and Preparation

At Eagle Equipment, ensuring our customers’ safety is our primary concern.  Your car lift was designed and built with safety in mind.  However, safety relies on proper installation and training.  Prepare for a successful installation by making sure your floor meets specific requirements.  We would like to emphasize the following floor requirements for installing 2-Post and 4 post car lifts.

Site Selection
Before installing your car lift, check the following:
• Lift Location: Always use architect’s plans when available.  Check layout dimension against floor plan requirements making sure adequate space is available. Your lift
requires a 220v, 30amp, single phase, grounded electrical source.  There should be room enough to operate the lift in a safe manner and without restrictions.
• Overhead Area: The area where the lift will be located should be free of overhead obstructions such as heaters, building supports, electrical lines, doors, lights, etc.
• Floor Area: Visually inspect the site where the lift is to be installed and check for cracked or defective concrete.

Floor Requirements
• A level floor is suggested for proper installation and level lifting.  Small differences in floor slopes may be compensated for by proper shimming.  If a floor is of questionable slope, consider a survey of the site and/or the possibility of pouring a new level concrete slab.
• New concrete must be adequately cured for at least 30 days.

DO NOT install auto lift on any asphalt surface or any surface other than concrete.
DO NOT install auto lift on expansion seams or on cracked or defective concrete.
DO NOT install auto lift on a second/elevated floor without first consulting building architect.
DO NOT install auto lift outdoors unless special consideration has been made to protect the power unit from inclement weather conditions.

Concrete Specifications
All models MUST be installed on 3,000 PSI reinforced concrete only. Additional concrete requirements will vary by lift.

8,500 lbs – 10,000 lbs lifts: 4″ Minimum Thickness
11,000 lbs – 15,000 lbs lifts: 6″ Minimum Thickness

Specifications of concrete must be adhered to. Failure to do so could cause auto lift failure resulting in personal injury or death. All of our automobile lifts include a manual with floor and concrete specifications .  Adhering to these specifications will ensure a safe and successful installation.

Please visit the Eagle Equipment site for more information and online product manuals.

26 thoughts on “Proper Lift Installation—Floor Requirements and Preparation”

  1. I’m thinking about putting up a garage/workshop with the intentions of putting in a 2 post lift in the future. My question is, for a 10,000lb lift what would be the recommended height for the building and how thick should the concrete both for such a lift.

    1. The overall height is 143″ so I would recommend at least 13′ or 14′. For 10,000 lbs, we suggest 3000 PSI and at least 5″, but the thicker you can go, the better…. so 6″ would be even better!

    1. All models MUST be installed on 3,000 PSI reinforced concrete only.

      Additional concrete requirements will vary by lift. For example:
      MTP-9A, ECL-10AS (4″ Minimum Thickness)
      MTP-12F, MTP-15 (6″ Minimum Thickness)

  2. I have seen lifts installed where the concrete wasn’t thick enough so two 4′ by 4′ 6″deep slabs were poured one slab per post is that safe? Or does the entire perimeter around the lift need to be even?

    1. We have had many customers do this. As long as the slab is to the right PSI and is reinforced with the current concrete (by Rebar) then it is good.

  3. what size concrete pad should be poured for a free standing 2 post car lift with a 14′ drive through that handles 15,000 lbs?

    1. we recommend at least 6″-8″… 12″ would be even better. The PSI needs to be 3,000 and it needs to be reinforced concrete.

  4. I want to install a 12000 lb lift and only have 4″ of concrete. What size area and how deep needs to be cut out and re poured?

  5. I have a pole building could I mount lift on 4 mounting pads that are dug into the ground and poured into the round support tubes

  6. I’m looking into installing a lift on asphalt surface. We are cutting out the asphalt and pouring 4’x4′ and 8″ deep 3,000 psi concrete pads for a 9,000 lb lift. Do you think this will be ok?

    1. As long as you have the lift installed into the concrete at 8″, 3000 PSI you should be OK. Are you putting a lift outdoors ?

  7. I am going to be pouring pads for each of the legs of a 4 post lift. I have a dry building. What should the thickness of each concrete pad be? We are going to dig down and put white rock for a base for each pad. I originally had this lift in my house garage with a regular concrete garage floor and had no problems.

    1. It depends the size lift you are getting, but if you are to be pouring the pads, it’s best to go as thick as you can, with at least 6″ of concrete at at least 3000 PSI.

  8. Good afternoon. Can I have sand or loose soil immediately under the slab? The slab will be 6′ X 14′ and 8″ thick. I expect to use 8″ anchors and I am wondering what should be immediately beneath the slab for the anchors to hold.

    1. Edward, Normally we see packed dirt or a gravel fill directly underneath the slab. Your soil composition has something to do with it as well. You may want to contact a local concrete company to get their advice. 8″ thick, with at least 3000 PSI is recommended. Hope this helps!

  9. I’m wanting to install a 4 post lift inside my garage. What is the typical psi for a typical house garage? What clearances do I need vertically. I have a 3 car garage wanting this installed in the 3rd garage single door. How much is the installation and I’m located in Olathe Kansas

    1. Phil, Thanks for stopping by the blog! We actually have something on our site to help you determine the garage height. Click here Click here to see it.

      We can also share lots of advice over the phone if you would like to call us at 800-336-2776. We would love to assist you in finding the right lift and the right installer in your area. Thanks!

  10. I am putting up a 10000 pound lift I was going to pour two concrete slabs for Ft wide by 4 ft deep with 3,000 lb tensile strength with rebar in it will that be enough to hold the lift

    1. William, to make sure we understand what you’re asking is, you are doing two – 4′ x 4′ slabs, 4′ Deep?

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