Are dogs allowed in? I saw many (not service) dogs in there but didnt find an official statement anywhere.

There's a PetsMart next door that allows pets. If the co-op has an issue. I've never seen dogs in the REI.

Only service animals are allowed in the store. An associate will come outside to fit your pet if it is a non-service animal.

I asked a sales associate if I could bring my dog in to try on harnesses, etc and they said it wasn't a problem.