Floor load calcs need help

[KennyG]

Just an odd thought - Are the floor panels easily removed? If so, fill the area with gravel and reinstall the floor. No problem with loads and no problem with varmints under the floor.

 

[YLee Kioti]

In almost all of these buildings, they will be running across the short span, which works perfect, because generally, the door is going to be on the narrow side, and running 2x12s in the wheel path, you can span something 8 floor joists.

yup, exactly.
Thanks...I have the door opening on the narrow end. (12 ft. span)

 

[YLee Kioti]

Just an odd thought - Are the floor panels easily removed? If so, fill the area with gravel and reinstall the floor. No problem with loads and no problem with varmints under the floor.

Just got a copy of eng. drawings from local dealer. Specs say to use 2 inch ring shank nails. Ha...so floor panels won't be coming up.
But when my aluminum ramps come in, the 2 x 12s will be used inside to park ZT on top of them. problem solved. Spread the load over a larger area.

 

[Runner]

So the sheathing is that synthetic flooring material. Not sure how thick it is. The support guy did not convey interest in answering my questions.
Now am considering laying in some 19/32 plywood. Three sheets, for driving in and storing the ZT.
Then I'll have a trip point mid-floor of shed-sigh...or spend more cash and lay in entire new material over the synthetic floor.
Hm..

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Or, just mark the location of the joists on the floor inside and try to park so the tires are right over (or close to) the joists centers. Wouldn't be too hard to do since you probably will park in the exact same place every time anyway.

You could also go underneath and add a few more floor joist in between the existing joists to cut the floor sheathing span in half, at least in the parking area.

 

[DarkBlack]

Received a Graceland Portable building, a 12 x 20 with 12" center floor joist.

If your floor joists are 12”OC, and not wider 16”, then you’re worrying about nothing. You’ll only have 11-1/4” between each joist.
Your tires are practically guaranteed to be at least partially over a joist, especially the wide flat rear tire contact patch where most of the weight is.
Just don’t park the hard narrow front wheels in the exact same spot year after year

 

[YLee Kioti]

I was given a copy of the engineering drawing of the building(s). The floor joist are supported by 4 each 4 x 6 beams running long ways. That is the narrow 12 foot width. So reading all the different insights given, the joists being supported by four beams, this should be a non-issue.
This coincides with the dealer's feedback. I went to him for actual feed back from his customers.
Showing me the Graceland website where, a ZT is one of the items in the configurator used for customers to determine size needed.
Also, mentioned he personally knows of quite a few owners storing their ZT with no issues.
Conclusion, wife is right again! I may have been over-thinking it again.
But at least now I have peace of mind.
But again the community here has great minds and appreciate the insights that kept me from the tunnel vision.
Y'all have a great week.