DoorJammer and DoorJammer Lockdown are go-anywhere, no-hassle door barricades that don't need a fitting tool or any door modification.
Installation is quick and easy - just slide DoorJammer firmly under and against the door below where the handle is or would be.
Next, just turn the screw clockwise until firm - no need to overtighten - and installation is complete.
To remove, loosen the screw and pull the handle up and away. DoorJammer's quick-release function is even easier - simply pull the handle up and away.
How To Use
Always position DoorJammer below the handle or where it would be.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-install-1.png)
1
Insert the flat part of DoorJammer all the way under the door.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-install-2.png)
2
Twist the screw left (clockwise) until the foot is firm against the floor.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-install-3.png)
3
Pull the handle to ensure door is secure.
Tip: For extra grip on thick carpets, try using the extension foot available for DoorJammer.
Removal
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-removal-1.png)
1
Twist the screw right (anti-clockwise) until the foot is loose.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-removal-2.png)
2
Pull the handle up and away.
QUICK-RELEASE
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/doorjammer-removal-3.png)
3
For immediate removal, just pull the handle up and away.
Always position Lockdown below the handle or where it would be.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-install-1.png)
1
Insert the flat part of Lockdown all the way under the door.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-install-2.png)
2
Twist the screw left (clockwise) until the foot is firm against the floor.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-install-3.png)
3
Pull the handle to ensure door is secure.
Tip: For extra grip on thick carpets, try using the extension foot available for DoorJammer.
Removal
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-removal-1.png)
1
Twist the screw right (anti-clockwise) until the foot is loose.
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-removal-2.png)
2
Pull the handle up and away.
QUICK-RELEASE
![](https://cdn11.bigcommerce.com/s-p9q32coj1y/product_images/uploaded_images/lockdown-removal-3.png)
3
For immediate removal, just pull the handle up and away.