cdnpont wrote:

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Can't answer any of you questions, just stopping in to say congrats! Looks beautiful and it must be a dream for you.

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 Thanks Mark.  It is for sure and a retirement gift to myself.  Now to get retired

I looked into having the garage floor treatment done and it's become much more expensive in the last year (like everything else).

A year ago, to do my 2 car garage (20 x 22) was around 2500 dollars, now it's 3200 dollars.

A bit of a shocker.

Scott (Landshark ...)

oshawacliff wrote:

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Was the floor reinforced in any way to support a hoist even if it os portable?

My 2 cent thought.

 

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 Well that's a good question.  I didn't ask for anything specific.  Here is what the plan called for and I assume was done.

GARAGE SLAB CONSTRUCTION:

6" well compacted course fill

6 mil polyethylene moisture barrier

32 MPa (4600 psi) strength concrete, air-entrained

4 concrete slab with perimeter thermal break (2 XPS

extruded polystyrene rigid foam insulation)

2" extruded polystyrene (XPS) rigid foam insulation

All joints sealed/caulked

Control joints as appropriate

Floor sloped

oshawacliff wrote:

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Was the floor reinforced in any way to support a hoist even if it is portable?

My 2 cent thought.

 

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 I don't know if I made a mistake with mine or not but I built my work bay that was to have the hoist with no extra reinforcing. 

My thinking went this way-

If I had a Duramax 3/4 ton diesel, I'd park it in that bay. The footprint of the front tire on that truck is likely about 100 square inches per tire. It likely weighs maybe 5500 pounds (from what I could find), so 2750 on each 100 square inch print. 

My hoist weighs 1700 pounds. Each of the 4 post pads is 144 square inches.  Let's say the heavier end of the hoist weighs 1000 pounds, so 500 pounds per post.  Say I park my big block Pontiac on the heavy end of the hoist. The front axle on it likely weighs 3000 lbs at the absolute worst, so 1500 pounds on each front tire. Add the weight of the hoist post (500 pounds) and I have 2000 pounds on 144 square inches with my Pontiac on the hoist post vs 2750 pounds if I park my Duramax on the concrete floor. 

I don't really put anything heavier than a Pontiac on the hoist and even if I did I still have 750 pounds per tire to spare before I'm up to the weight of a Duramax. 

And maybe I'm all wet behind the ears but that is how I rationalized it when planning.

My concrete guy applied a hardener to both my attached garage and shop floors. It has to be applied within two days of pouring the floor as it cures. It results in  a more robust surface with less dust. Ive never had an issue with the floors being slippery. Hardener is reasonably priced and easily applied with a sprayer. A sealer can be applied after 4 weeks but I didnt seal mine.

I have a four post hoist due to the flexibility and ease of moving it around and not having to anchor it to the floor. That thing is hands down the best tool I have ever bought. My shop floor is structural, 6 inches thick with a widened edge so I am confident that the hoist can be located anywhere in there without concern. I moved it a couple of times until it now sits in a more or less permanent spot. It looks as though your building is on a grade beam and footing so your floor will be a floating pad. I am not an engineer but a 4 inch thick pad with a higher than normal mpa concrete and adequate steel re-enforcement should handle a four poster. If you decide on a two post hoist it has to be fastened to the floor and in that case I would thicken the floor at the posts. The rub with that is either you thicken the floor in a number of locations to facilitate moving it around or think it through and choose one location where it will stay put.