2 post shop lift

squaredeal91 said:

Here's the manual

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Radiohead said:

Your thread has me noodling the nuances of proper lift installation. As a lift user, I always thought it was laughable how 8 bolts keeps all that potential energy in check, and for the most part it does. My brain goes to a concrete submerged steel matrix that connects with the lift much like structural rebar (if that's even a thing) giving the lift bases its support.

Curious what the manual recommends. I'm sure my solution is engineering overkill. See, I am leery of bolts in concrete for seismic reasons, especially if I'm under the lift when it starts shaking.

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Radiohead said:

Your thread has me noodling the nuances of proper lift installation. As a lift user, I always thought it was laughable how 8 bolts keeps all that potential energy in check, and for the most part it does. My brain goes to a concrete submerged steel matrix that connects with the lift much like structural rebar (if that's even a thing) giving the lift bases its support.

Curious what the manual recommends. I'm sure my solution is engineering overkill. See, I am leery of bolts in concrete for seismic reasons, especially if I'm under the lift when it starts shaking.

Click to expand...

legopnuematic said:

Congratulations on the lift! Like having a pocket on a shirt, very handy.

I’ve been seriously looking into a four post for myself, split usage between storage and service.

Really one of each would be best…

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squaredeal91 said:

I contemplated the 4 post myself. And the storage aspect is cool for your setup. You got plenty of overhead room.

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legopnuematic said:

Of course there is always this traditional option:

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squaredeal91 said:

similar to this one I found the other day

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legopnuematic said:

There are at least two guys at the shop that have 2 posts in their units, one in a 20x50 (like mine) and another in a 15x50. So I’m guessing the slabs are thick enough for one (I’d hope so). In my mind the 15 wide unit is kind of nice for one since it can only go in one spot left to right, whereas in the 20 wide do you bias it to the left, right, center? A 25 or 30 wide unit there is enough wiggle room to navigate around one to potentially put 2 vehicles side by side.

Seems that most 4 posts these days come with a caster kit, and do not need to be anchored down, which definitely opens up some flexibility to move it as and when needed. Which appeals to me as I can see it depending on what is going on in the shop at that moment being better in the front or rear. The storage aspect would likely be the primary use for it for me.

My grandfather had a 2 post in his garage he had built about a 30x40 (give or take a couple feet either way) garage doors (one single and one double door) on the 30 foot wall. In my opinion the lift was in the wrong spot, he had it inline with the single door, but towards the back of the shop, away from the door. In my opinion should have had it closer to the door to negate the need for a clear path in between the lift and the door. Doesn’t matter now since he had sold it some years before he passed after walking into one of the arms when it was raised and gave himself a concussion.

Anyways, enough rambling, back to the regular scheduled broadcast.

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Ricko1966 said:

I've actually done this before. 1980 something Chevette in a drive under basement garage,doing an engine swap. David's stepdad was wedging 2x4s between the front bumper and the floor.I was like,what are you doing if this thing falls I'll be crushed and impaled by 2x4 fragments. I wasn't afraid of it falling, held up by chain hoist around basement beam. 2nd seperate log chain, safety chain around beam and front of car.

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