Will 4 post lift flush with wall damage concrete?

[Ict57]

Recently bought a 8k lb Direct lift; it’s awesome.

However, curious if there are any guidelines or restrictions on placing the lift directly next to a stemwall. My slab is 6” thick 4000 psi concrete, traditional foundation wall (not mono pour).

Only recommendation I’ve seen is NOT to place bolts/anchors within 6” of seam or edge. And I don’t plan to bolt it done.

PS-yes I still have plenty of room for drive through and opening doors.

 

[pbon]

4 post obviously spreads weight more than 2 post, but I would still try to stay 6” off the edge of the slab. I don’t know whether you have a foundation wall the slab butts to or whether the slab actually extends a little further and you have a wood framed walls on top. Your 6 inch thickness helps, but I would still be cautious if caution is an option.

 

[Retroman]

Should be a turn down footing along the edge of the slab, is there any thing on top of the stem wall like wood framing? A picture would help.

 

[Ict57]

Yeah slab buts up to foundation/stemwall that sits about 6” higher. Wimped our and left it about 8” from the wall.

 

[finn]

Two posts will be at the edge of the slab, and will bear half of the weight of the lift itself, plus half the weight of the car.

That’s less than what a slab sees when a heavy delivery truck or piece of construction equipment crosses a slab of similar thickness to enter a driveway or garage. No, putting the lift near the edge of a structurally sound slab won’t damage that slab.