A waxed Belisle 120 super x or a 2001-5 sauvageau in a mink box will kill skunk well,without spraying.
They may leak little but they wont spray.
A 110 is inadequate for skunks.
What is a shunk?

Very limited experience with them, but I've seen two caught in 120 Bridgers in marten boxes during a warm spell (yes skunks can climb), both were dispatched without spraying.

At what distance does it put in danger of getting hit by spray.

Depending upon wind, 12'-16' is about the edge of the danger zone. Most times I find it best to crawl up to them as your less threatening to them by being ground level with them. Also your a smaller target. Younger ones seem to be more excitable while the larger ones more calm, especially ones that have been around farm yards and livestock.

Don't know, never been sprayed. BUT: I'm not a big "snunk" trapper! LOL

20 scout: Crawling will make it harder to escape when it turns it's tail towards you. LOL

sorry guys they put the n too close to the k on my keyboard

The forum also provides and EDIT function.................

and the op has already been fixed sorry

I went to town and got a 220 but it turns out a 110 will work ,just barley but a large skunk head will fit halfway into a 110 which evidently is far enough . thanks for all the help guys to a new trapper here

I often use a pellet gun and put one behind the shoulder. It takes a bit but does the job. Most the time they don't spray.

"20 scout: Crawling will make it harder to escape when it turns it's tail towards you. LOL"

Pay attention to what the skunk is trying to tell you. When they start to stomp or raise their tail you simply back off a bit. Confidence and patience are two things you need when dealing with skunks.

In my opinion you should accept that a caught skunk is probably going to spray or leave considerable odor. I would set my trap of choice close to the target ( chickens as you state) but as far from things you want to smell like skunk for several days or weeks. You could ask your neighbor if he/they would let you use their cage trap and let them know it will probably get skunky. You could put covering over most of the trap to minimize odor drift etc. I have caught a few in 160s that did not spray, most did. Almost all I have caught in foot holds or cages wound up spraying, but I was not taking the needed time etc. to prevent spraying either.

Bryce

1 Qt Hydrogen Peroxide
1/4 cup Baking soda
1 good squirt of liquid dish soap

Mix well and use, results are instant and spectacular
Don't try to save leftovers, your container will explode

160's will have them spray sometimes. It doesn't catch them behind the ears and is a little too big for skunks.
120's do an excellent job of dispatch and catches them just right. I have only had a couple spray in years and I catch quite a few skunks

I set 160s for coons and the skunks are incidentals for me. I don't own any 120s, so 160s are what I use. They sure hammer the chucks.

Bryce

I gave my dad a couple of dogproofs to help with the coons in his corn patch. The first two nights he had a skunk in each one. I believe he just used dry dogfood for bait.