You do NOT need a R-0 door in Wyoming. You might as well not even have a door and invite the cold in. You need a standard insulated door, so you at least get some way of blocking some of the cold out. Maybe look at dong a door with a transom or sidelight. Those are small enough, and can be double, or triple, paned, and gas filled. Stay away from any box store junk. That is a very poor quality door.

Thank you so so much!

Glory Iron Doors, they are looking at a Jeldwen door from a box store. Do you really think they will spend 20x that on an iron door? Stop with your Spam already.

Do not take DeWayne's advice. Depending on the manufacturer you may not have good air sealing, and you don't have room for it anyway.

You could do a door with half window. Doors do not have much of an R value anyway, and by far the most important thing is air sealing and getting a really good fit on the door. There is extra weather sealing you can buy to go around the door, and a well fitting storm door will help as well.

I have had all glass doors in Calgary with wind -40 c no issue the glass is insulated and so is the steel . We never had storm doors no problem and one of ours faced north . We did however make sure about good weatherstripping

Thank you, this is really helpful. I just knew what I liked the looks of, don’t know much about doors otherwise 😊