

Trailer doors are a great application for aluminum extrusions for these reasons:
- Stiffness driven by geometry, yet maintaining low weight & thin profile
- Corrosion-free
- Versatile geometry for hinged joints that are self-lubricating for long life, many cycles of use
LINK Manufacturing states that its ramps are "designed for reliability and durability using extruded high strength aluminum…"
Sources:
https://www.linkmfg.com/products/ramps/mounted
https://www.innomotivesolutions.com/whiting-canada/doors/models/c4e
LIFTS & PLATFORMS
Promoting Lightweight, Aesthetics, and Low Maintenance:
"Lightweight, rust proof extruded all aluminum platform." Extrusions bring considerable value to the platform, making it an easy choice. With extrusions, it is easy to design multiple hollows to ensure stiffness and durability, and just as easy to integrate anti-slip features on the load surfaces. Of course, there's great corrosion protection to enable a long life with good aesthetics.