Dog boxes - sorry can't get search to work

[Hotchkiss]

I am looking for a three hole dog box. I know boxes have been covered before but can't get search engine to work. What are your recommendations? I can see where an all aluminum would be light and nearly indestructible but darn they have to get cold.

[displaced_texan]

I have had a single dog stay warm in the middle hole of a 3 hole aluminum box in single digit temperatures...