- Versatile Compatibility: This adjustable door mounting kit accommodates various door types, including 1-10/32", 21-30/32" French doors, pocket doors, bi-fold doors, steel frame doors, fire doors, barn doors, and other heavy-duty doors. Note that the kit lowers the door to 11/32" and lifts it to 1 3/8". - Hands-Free Installation: Designed for easy use by a single person, this mounting cart simplifies door installation, allowing for hands-free operation. The door lifter features four 360° rotating wheels with brakes for effortless maneuverability and stability during setup. - Enhanced Load Capacity: Equipped with a triangular reinforcement on all four corners, our door trolley minimizes deformation and maximizes strength. Each assembly tool is rigorously tested to support up to 500 lbs individually (1000 lbs total), ensuring reliable performance. - Safe and User-Friendly Design: The kit’s edges and corners are expertly processed to prevent cuts or injuries during use. This thoughtful design promotes safety and ease of handling. - Practical Applications: Ideal for home improvement projects, professional installations, or DIY renovations, this door mounting kit makes tasks like hanging barn doors or replacing heavy interior doors easier and more efficient. - No Additional Accessories Required: The kit is ready for immediate use, streamlining your workflow and saving time on installation. Optimize your door installation experience with this reliable and versatile mounting kit, designed for both convenience and performance.