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nimblemotorsports Reader
2/18/20 11:56 p.m.

I am moving into my new shop!  It is 3300sf, but that is still too small, so I built a double decker car storage platform to store two extra cars on top.

What could go wrong?


Naw, that isn't going to work!   


I'm just putting light cars up there, under 2000lbs.  And using a winch, to get one set of wheels onto the platform,

then raise the ramps to get the rest of the car onto the platform.    

I just can't let this 89 Tercel go, have to hang on to it. :)


SnowMongoose SuperDork
2/19/20 12:28 a.m.

dculberson MegaDork
2/19/20 6:15 a.m.

I applaud your ingenuity but the triangulation on that looks massively under specced. One good hit and that's going to collapse unless it's fastened to the building? Even then the side legs look pretty vulnerable to me. 

Patrick MegaDork
2/19/20 7:00 a.m.

The triangulation needed is severely underestimated in all facets.  

Woody MegaDork
2/19/20 7:04 a.m.

Don’t berkeley with gravity. 

John Welsh
John Welsh Mod Squad
2/19/20 7:25 a.m.
Woody said:

Don’t berkeley with gravity. 

Gravity: more than a good idea; its the law!

Patrick MegaDork
2/19/20 7:39 a.m.

Clarification.  As a carpenter, this scares the E36 M3 out of me.  From the apparent lack of lateral stability from the posts to the beams, 2x6 material in that span with a car on top, and the lack of adequate triangulation.  Please either don't do this or beef it up significantly, and for the love of dog please don't go under it.  

John Welsh
John Welsh Mod Squad
2/19/20 7:42 a.m.

In reply to Patrick :

...and don't put another car up there which seems to be the intention!  

Purple Frog
Purple Frog New Reader
2/19/20 7:58 a.m.

Are you setting that up to film some kind of fail video for Youtube?

That deck doesn't meet standards for even having people walk upon.

Maybe if you added a lengthwise beam under the center, some trianglation, and fastened it to the two walls...

Ian F
Ian F MegaDork
2/19/20 8:02 a.m.

Well... having that Tercel crash to the floor in a pile of splintered wood is one way to let it go... 

STM317 UltraDork
2/19/20 8:09 a.m.

Only perimeter support? Limited triangulation? And you live in Sacramento?

I can see a little shaking taking that down in a jif

Apexcarver UltimaDork
2/19/20 8:11 a.m.

When there is this kind of unanimity on here you should really take notice.


Bad idea. We are trying to save you from yourself.  We value your well-being.

T.J. MegaDork
2/19/20 8:16 a.m.

What could go wrong?

That looks at least as sketchy as this. Hope nobody gets hurt. 

Mr_Asa HalfDork
2/19/20 8:16 a.m.

What can go wrong?

Lof8 - Andy
Lof8 - Andy SuperDork
2/19/20 8:21 a.m.

If the platform was a little taller, you could put the cars on the ground and lighter, less dangerous things on top. 

ProDarwin UltimaDork
2/19/20 8:58 a.m.
Lof8 - Andy said:

If the platform was a little taller, you could put the cars on the ground and lighter, less dangerous things on top. 

I think "double decker" implies that there will be one car above another car.  

The height does look a little low for that.

Professor_Brap Dork
2/19/20 9:06 a.m.

Please beef it up. If not for yourself for the tracel

Dusterbd13-michael MegaDork
2/19/20 9:09 a.m.

My balls are not big enough to use that as pictured. 

mad_machine MegaDork
2/19/20 9:18 a.m.

yes, I think a second floor for lighter stuff and storage would be better than trying to stack cars.

Olemiss540 Reader
2/19/20 9:21 a.m.

I would wrap the trusses with stick-on carbon fiber vinyl wrap at a minimum. IANAStructuralEngineer

therieldeal Reader
2/19/20 9:38 a.m.
STM317 said:

I can see a little shaking taking that down in a jif

Hey, maybe he'll catch it on camera and it can also become a gif

L5wolvesf Reader
2/19/20 9:48 a.m.
ProDarwin said:

The height does look a little low for that.

Remember, he is nimble.

Another place to submit this . . . 


Shadeux HalfDork
2/19/20 10:21 a.m.

There are so many things wrong with that.

Really, don't use it.

Ian F
Ian F MegaDork
2/19/20 10:48 a.m.

Besides the risk, I look at all of that wood and compared to the cost of an actual 4-post lift, I wonder how much money was really saved.

Knurled. MegaDork
2/19/20 10:53 a.m.

How heavy is a foot of snow on top of a house's roof?


Build it as strong as a roof and make sure the tires are on trusses and not sitting on unsupported plywood.

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