Organization- Matthew at the Cabin Door

He’s going to get in and—Dana thought, but Holden’s fear galvanized him. He dove forward, balance unsettled but using his momentum to shoulder into the door, his right foot tangling in Jules’s hair and swinging her head across the floor in a blood-smearing arc. He slammed the door shut again, falling against it just as the thing smashed into it, rattling the frame, splintering wood.

Holden slipped the bolts and fell back, kicking his foot frantically to dislodge it from the head’s hair.

Big-zombie slammed into the door again. Timber splintered and fell away from the frame, and Dana actually heard the creak of bending metal as the bolt warped under the immense pressure.

A few more like that… she thought, and then Marty was at the door with Holden, helping him throw the top and bottom bolts as well. They wouldn’t hold for long, but perhaps they’d give them some time to—

She saw her friend’s head from the corner of her eye. Jules was staring at her. Dana sucked in a few deep breaths to try and calm herself, but all they did was feed the scream building in her lungs once again. Holden and Marty leaned against the door, grimacing with each impact. The air in the room seemed to vibrate every time big-zombie struck.
...

Wham! Big-zombie struck again, and the whole cabin seemed to shake and creak. More dust drifted down from the ceiling, hazing the air and dancing in candlelight. Five minutes ago this light was so romantic, Dana thought. She glanced at Holden, he threw her an uncertain smile, and she realized how shocked they all were.
...

Wham! Another impact against the door. The frame shook, wood cracked, but the sofa was wedged tight beneath the handle.

- The Cabin in the Woods: The Official Movie Novelization, chapter 6