How to use "shack" in a sentence

A guard shack stood to the right of the road, from which the gate was controlled.

They were no more than six or eight feet from the lighted shack, close enough to see the guard's face as he scowled at them through the large window.

He got to his feet, took a coat from the back of his chair, slipped into it, zippered up, and came out of the shack

Before he got to the guard shack at the upper gate, he climbed onto the ridge above, used the snowshoes to circle the guard, returned to the road, and threw the snowshoes away