Ladder jacks are simple devices used in construction to support a platform or scaffold. They consist of two brackets that attach to a ladder, allowing workers to create a stable work surface at various heights. This tool is particularly useful for tasks like painting or siding installation, where a steady platform is needed. These jacks are designed to fit most standard ladders and can hold a plank or board securely. When used correctly, ladder jacks enhance safety and efficiency by providing a reliable workspace, reducing the risk of falls or accidents while working at elevated levels.