These have windows and heating/air conditioning ports at EACH END. They also have a heavy duty floor that fits very tightly, and has Velcro closures to seal the floor to the sides and cover! Doors use very heavy duty plastic zippers and have the stitched in attaching flaps for vestibule entryways. The tent comes with the new insulated liner! White inside for excellent lighting, foil on the side you don’t see. I believe they are Thinsulate brand. The frame is erected, then the liner goes on, then the cover. My son and I build these in 2 hours, but if you have 4 people it is easier. I built one by myself using a 7 ft ladder and ropes to throw over the frame, then used a quad to pull cover over with the ropes. If you want a vehicle or heavy equipment shed, you can leave one or both ends off the shelter. Again, this is a NEW cover and floor, and liner, erected once, so will have some grass or dirt from our lawn…. These tents are good for many, many years, and handle 90 mile per hour winds. They come with stakes, instructions, etc. We only have one set of instructions so you will get a copy. They are also easy to find online. The item “Alaska Structure Military Medical Shelter Tent Surplus 32 ft x 20 ft” is in sale since Sunday, July 30, 2017. This item is in the category “Collectibles\Militaria\Surplus\Personal, Field Gear\Other Surplus Military Gear”. The seller is “just-fly!” and is located in Port Angeles, Washington. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.

• Country/Region of Manufacture: United States