![MetalTech 21.75 in. x 10 in. x 16.75 in. Aluminum Adjustable 2-Rung Ladder Jacks for Scaffold Extension Boards, Ladder, or Plank E-LJ20P - The Home Depot MetalTech 21.75 in. x 10 in. x 16.75 in. Aluminum Adjustable 2-Rung Ladder Jacks for Scaffold Extension Boards, Ladder, or Plank E-LJ20P - The Home Depot](https://images.thdstatic.com/productImages/98b5e77b-9074-45cc-ad34-3e8a21a90967/svn/metaltech-ladder-accessories-e-lj20p-64_600.jpg)
MetalTech 21.75 in. x 10 in. x 16.75 in. Aluminum Adjustable 2-Rung Ladder Jacks for Scaffold Extension Boards, Ladder, or Plank E-LJ20P - The Home Depot
![Dino Engineering on Twitter: "Example of how the ladder jacks work https://t.co/btCCC3Ap7T" / Twitter Dino Engineering on Twitter: "Example of how the ladder jacks work https://t.co/btCCC3Ap7T" / Twitter](https://pbs.twimg.com/media/DlnqVN2X0AA2Snp.jpg)
Dino Engineering on Twitter: "Example of how the ladder jacks work https://t.co/btCCC3Ap7T" / Twitter
![eTool : Scaffolding - Supported Scaffolds - Ladder Jack | Occupational Safety and Health Administration eTool : Scaffolding - Supported Scaffolds - Ladder Jack | Occupational Safety and Health Administration](https://www.osha.gov/sites/default/files/inline-images/ladder_0.jpg)