is 36x18 ok?

[Homebody]

I always rememberd a 40 breeder equivalent being the go to size for BPs, but it seems now certain people are saying 4x2 is " the new standard". Ive had my male in a 41 qt and now a 116ish qt (36 ×18) and he seems fine just wanted to get opinion. Might look at a christmas tree tote (52x20) this winter.

I agree that a 36x18 is fine, but that a properly set up 4x2 is better. A christmas tree tote is an intriguing option, but, unless your ambient temp is 80 degrees, it looks like it would be a challenge to heat.