need advise on installing a lift
Thread Starter
Racer
Joined: Oct 2006
Posts: 393
Likes: 1
From: Bryan Tx.
need advise on installing a lift
i have just aquired a 7000 lbs. 2 post lift. i want to install it in my shop and am wondering if anyboby can tell me if the 4" slab is strong enough to mount it on. ive been told both ways and was hopeing someone else has had any experience with this? thanks
Melting Slicks
Joined: Nov 2002
Posts: 2,884
Likes: 261
From: Jamison Pa
St. Jude Donor '11-'25
My setup
I've got 12" of 4000 PSI concrete where my lift is. It was installed by a Mohawk distributer. They used large bolts that locked into the floor.
It's been there for 6 years w/o a problem.
I would suggest contacting the manufactur to see what the recommend.
Bob K.
It's been there for 6 years w/o a problem.
I would suggest contacting the manufactur to see what the recommend.
Bob K.
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
I previously owned a 9,000# FORWARD MANUFACTURING two post commercial grade lift (12ft columns, clear floor asymetric, tested to 27,000#). The manufacturer and installer said 4" of fully cured 3,000psi concrete was fine for that lift.
Obviously, thicker concrete couldn't hurt, other than your wallet. The option would be to dig steel reinforced footers 24x24x24" beneath the columns. Do you know the manufacturer of the lift?
Obviously, thicker concrete couldn't hurt, other than your wallet. The option would be to dig steel reinforced footers 24x24x24" beneath the columns. Do you know the manufacturer of the lift?
Team Owner
Joined: May 2005
Posts: 23,682
Likes: 9
From: Flagstaff Az.
If it is a two post lift and the two posts are connected at the top so that the side force is countered, 4" of concrete should be fine. I had a two post on 4"s of concrete and regularly hoisted a diesel Suburban(7200 lbs.) up on it with no problems.
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
I run a 10K Bend Pak on 4" of 3,000 and sometimes I'm lifting my 1 ton xtra cab diesel. If you have 4" on concrete your fine.
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Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
Do you have a set of the original house plans from the original owner? You might try to check with the building inspector of the city/county if the house is relatively "new" and built to code.
If in doubt and planning for a two post lift, then you could saw cut out 2x2' for the mounting pads and dig down 2' to pour steel reinforced footers.
If you're planning for a four post lift, there hopefully won't be an issue since a four post doesn't have to be secured to concrete...again, if in doubt...
If in doubt and planning for a two post lift, then you could saw cut out 2x2' for the mounting pads and dig down 2' to pour steel reinforced footers.
If you're planning for a four post lift, there hopefully won't be an issue since a four post doesn't have to be secured to concrete...again, if in doubt...
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
Unless the concrete is very new it has cured to well beyond the 3000# mark by now. Concrete never quits curing and the 3000# is typically the test mark for the 28 day break. The amount of potash in the mix (among other factors) can advance or delay the break # readings to a point, but after let's say a year it's a mute point.
