Lift placement

Evan Dutch said

I’d like to be able to lift a crew cab long bed but it’s not a necessity, more of a want. Where the lift is going to be mounted is 12in deep and the entire floor is 4000psi concrete. I should probably mention the doors are 10x10 feet and they’re metal roll up doors that roll up into themselves. Side walls of building are 12ft tall and the peak is just shy of 15 feet.

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4000 psi is probably ok if its 10” thick where the posts go. Wouldnt it suck if you had a bigass truck on the hoist and the concrete broke? I dont mean and disrespect whatsoever, i have been in the automotive trade for a long time,and hoisting a vehicle on a 2 post is sketchy under perfect conditions.
10 roll up is a bonus in this case, but hoist placement in 23 usable feet doesent leave you much to work with.
Centre of gravity on a dart compared to the truck you mentioned is like 4 feet different. Asymetrical helps but the lift points under truck are still the same. Asymetrical means its easier to open 1 door.