Structural question for apartment

I took these few photos of the garage a few doors down from my apt. I am hoping all are built the same.

I hope you can tell something from the drawing or I will have to take some sheet rock down this weekend.

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Wow bucket head, how did you know that from just looking at the photo?

 

I'm a contractor. I do this for a living. For the joists to run the other way (really unusual) the screws would have to all line up perfectly 16" OC all the way through.

 

thank you to all for your help with this. I would rather be safe than sorry as far as my investment (the tank not the apartment) plus I like using power tools

I will take a photo of the finished product once it's complete.

Once again thanks.

 

The wall I am putting the tank on will use all the joists like A in the drawing.

 

Tank is up!
Thank you all for your help.

 

Looks great but how about some pics of the platform?

 

I might be a bit late chiming in here, but you want to take a look at your lease contract first. I work in the apartment industry (as maintenance) and at least in my area the lease contracts state that no aquariums or exotic pets (insects, spiders, snakes/reptiles, fish, etc.) are allowed to be kept in the apartments. As far as apartments within the U.S. go, I think that's a pretty universal clause in the contract. Of course, not many people follow the rules (even me), and I've seen at least 5 large saltwater aquariums and numerous smaller freshwater aquariums in various apartments while working.