N Scale - 24 foot long ladder with standoffs on the back side for use on structures.

thingiverse

This is a compact, two-foot wide by 24-and-a-half foot long freestanding ladder featuring sturdy supports/standoffs along its rear side to securely attach it to a building, tank, or other structure. Additional safety features can be integrated into the design, including a protective cage and/or elevated platform tailored to specific needs. For further information on this ladder, safety cage, and top platform, visit the provided link: http://1fatgmc.com/RailRoad/3D-Printer/page-15.html. To explore various layout items and usage instructions for this product, please refer to the following resource: http://1fatgmc.com/RailRoad/3D-Printer/3D-Printer-Index.html. The prints were successfully produced using an Ender 3 Pro 3D printer with Cura software set to 'Super Quality' in the 'Profile' settings and a standard .4 nozzle.