Will this crate be exposed or within a pickup with a topper or cap?
I have a Pick-Up with a topper. I do not insulate but if all possible in colder weather I do run a small electric heater within the interior of the back. I have built a box with slding full length trays under neath the box and the kennels sit on top.
I used the plastic Vari Kennels for 20 yrs. The 36" large size.
Then - I found Rough Tuff Kennel to be far superior to thatVari brand as the size fits my 60-70 lb dogs far better AND Saves me room which is much needed. The floor is flat and cleans up far better than the Vari.
I can easily fit 3 kennels across in the back or stagger with 4 - 2 in back and 2 in front
And with any plastic crate it cleans up easily with a garden hose.
Link
http://www.rufftoughkennels.com/
Now I know others who use a kennel cover and the dogs do fine. Kennel covers such as the Muddy River kennel covers
Link
http://www.amazon.com/River-Dixie-Ke...6921027&sr=8-1
JW