POLE BARN / GARAGE SIZE SUGGESTIONS

45' by 50' here. Allow for height in case you have a 5 th wheel. I have two 7' x 14' slider doors for a 14' x 14' trailer entry.

Down the same wall a 10' roll up door. Another sidewall has a 10 x 10' slider for equipment access. Passage door on other side wall. Back wall solid.

Moved from technology corner

In our neck of the woods, the structure would need to be engineered. The engineer you choose should be able to determine sizing increments to best utilize building materials with the least amount of waste.

Don't worry about waste... You need a opening that is 14' high. You can make it longer at a future date fairly easily, but not higher.

I have a 30x44 and wish is was longer. Get as big as you can even if you don't think you will use it. You will trust me on this one. Good luck post what you went with.

60' X 100' X 16'

I'd plan on storing the legal maximum length, height and width of a rig plus room to walk around and walk on the roof of the rig.

Length - legal max 45 feet, better make it 60
Width - legal max is around 104 inches, better make it at least 20-25 feet wide per RV for slides.
Height - legal max is 13' 4", better make it 16 feet tall.

Make plan view (top view) cut outs to 1/4"= 1ft scale of all your stuff you want to store out of stiff card stock.

Carefully re arrange the cut outs 476 times in various ways to "maximize storage". Place them this way and that. Do charts to determine use cycles. Wonder if you need to actually open doors to get in machines to drive them out. Discuss endlessly.

Then take whatever final dimensions you have engineered and consulted out from the above process and double them. :)

Oh other than a circle a square encloses the most floor space with the least amount of diggin and footins and length of walls but the roof can be more expensive if it is clear span...

Clear span roofs are A Good Thing in storage structures

As are doors minimum 14 ft high so all normal road legal vehicles fit.

I went 50x60 w/16ft inside ceiling
HVAC system - 5" thick concrete floor - 12x14ft door
It's too SMALL suggest you go bigger

One consideration I had when building the RV bay on my garage was I wanted to be able to park the truck next to the camper if necessary. The garage door needed to be wide enough to allow that, and we went back and forth between a 16' and an 18' wide door right up until the last minute. We settled on an 18' wide, and I'm very glad we did. I probably could have squeezed in with a 16' wide opening, but it would have been very tight, and it would just be a matter of time before I'd scrape something.

:):)