I'm looking at getting an enclosed 48' 21,000lb triple axle trailer for the pull truck. The reasons are I can make living quaters and its secure and it keeps things clean and I have a place for it to be stored in winter or when its broke and I dont want to look at it. But the real question is will storing such a heavy object in the trailer for months at a time (winter) wreck the trailer as in axles and floor or whatever else?

 

Depending on how well the floor was constructed it shouldent hurt the axels, or the axels on our trucks would all sag. I have a 20000 pound dual axel trailer for hay and Ive left 21000 on it for a month its ok.

 

you could always jack the trailer up and level it out like an RV to take some of the stress off of the suspension of the trailer.

I would verify that there are supports directly under where the tires of the truck will be, if there are not any supports you will need to put some there to help sturdy the floor to keep the truck from falling through if the floor gets weak.

 

I hear ya on spring suspension to a point with our trucks as an example but they also get exercised and moved just about every day second thing is they are torsion style axles. Good thinking though, keep the info coming

 

Heres some pics

 

You might try and contact the company that built the trailer and get thier input.

 

Yea I call the manufaturer for their imput but that a fancy trailer I cal live it in and park my truck in it.

 

My concern here would be sitting with a heavy load for an extended period of time could possibly de-arch the springs slightly and flex the frame more than normal depending on where the load is and where the jacks/axles are. Normal use let's the trailer and springs routinely flex so this isn't a problem unless it's overloaded.

Follow the advice here and jack it up evenly under the heaviest points and also level it to help make the weight evenly distributed and it will be fine.