On Riverside Multiple doors either push players through a wall, clip through walls, or both. Doors will be labeled as if you were outside looking in.
Here is a list of the doors:
Conference Room W/ Map - Right Door - Pushes You
Men's Restroom - Only Door - Pushes You And Clips
Women's Restroom - Only Door - Clips
Work Area A - Left Door - Pushes You And Clips
Bridge - Both Doors - Pushes You
Bridge - Right Door - Pushes You
Vent Room/Storage Closet - Only Door - Clips
Break Room - Inside Door (Not leading to the balcony.) - Pushes You
Break Room Bathrooms - Both Rooms' Doors - Pushes You And Clips
Lab C - Left Door - Clips
Server Room - Interior Door - Pushes You
Lab B - Door Parallel To Window - Clips
I'll update this if I find any more doors. I will also probably check out Cliffside.