These feature markers represent pieces of furniture that investigators can use to temporarily block a door. An investigator may spend his Action Step to either move a barrier in his space onto a door in that space (place it partially over the door), or move it from the door back into the space. Once a barrier is on a door, investigators and monsters may not move through the door. A monster trying to move through this door has a chance to potentially remove or destroy that barrier.
Barriers may not be moved out of their starting spaces.