The Unstable Flooring is arguably the most dangerous environmental hazard in Granny. Instead of just making noise, the Unstable Flooring can immediately knock the Player out by making the player fall through to the ground, starting a new Day. Upon version 1.7.3, a new Game Over scene can be seen here.


The Unstable Flooring is found in the Attic in the doorway to the Jail.

Although it is clearly discolored and shows signs of damage, an unsuspecting player may be lulled into a false sense of security and attempt to walk across it. (This happens most commonly with first-time players) This will cause it to break it into pieces and drop them to the Ground Floor, a guaranteed knockout leading to the next Day, or a Game Over if it is already the Player's last day.

How to Avoid

As the Door in the adjacent room is locked, the only way to access the Jail is to obtain a Plank from the blocked doorway to the left and place it over the hole. This does not mean the player is immune to falling off; a careless player can go too close to the edges and fall off, losing the day.


  • The sound of the Unstable Flooring breaking.
  • The sound of the debris hitting the ground.
  • The sound of the Player falling through the hole.


  • If you go near the Unstable Flooring for long enough, the Player says, "Maybe I can use one of the planks."
    • If the player places one of the planks while this message is still on screen, it will never disappear, persisting for the rest of the play through and even into the ending cutscenes.
  • The Unstable Flooring attracts Granny to the Ground Floor as the debris falls there rather than the Attic. This is good as it gives the Player time to break the Security Camera and hide again. Just make sure that she doesn't see you through the hole and run upstairs.
  • Only 1 plank can be placed over the unstable flooring
  • Upon Version 1.7.3, there is a Game Over scene where Granny pushes the Player to the Unstable Flooring with their head first on a Bear Trap.
    • If a Plank is already there, the Player will fall through it like it never was there.
  • This, the Spider, and the gasoline explosion are the only things that can kill the player in practice mode.



Very Low

Bloody Mannequin, Christmas Tree


Boxes, Candlesticks, Table, Girder, Covers, Passenger Door


Bear Traps, Bell Alarm, Chair, Creaking Floors, Grey Vase, Blue Vase, Hanger, Hanging Meat, Hanging Plates, Tin Can, Large Lamp, Security Camera, Vent Door, Metal Panel, Spectral Rats


Guillotine, Jail Door, Unstable Flooring, Iron Bars, Gasoline


Locked Door


GrannySpiderTeddySpider Cage

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