Yes, you can get it done at any trailer dealer (like Utility) or trailer repair shop. It is far better to get a real vent with door because you can close it up when not needed and keep out the rain and road dirt.

I used to run a vented van as independent and found it usually paid better than typical dry freight. With a properly vented and lined van you can pull onions, potatoes, melons, plus all of the other regular dry van stuff. Some folks work year round following the potatoe harvest around America. We eat a LOT of potatoes in America and the loads often pay very well.

 

do u guys mean the door on the back trl door? or is it on the front of the trl?

 

Vents go on the front of the trailer and on the back door of the trailer. Use the vent that has an actual door with seals, less chance of water getting in.

 

Yep, that is the door we mean. And as said, get the real little door with seals, not just a vent with louvres that is always open. A good size is about 14" square. I paid $80 for both the front and rear doors, installed, several years ago. I don't know what they are charging these days, but it is a great way to give yourself more vesatility at a cheap price.