[TheProfessor]

Originally Posted by bigdog

That said, I'm looking for some material I can use to patch, sand and paint.

Suggestions?

I had the same doors. Two. I ended up replacing both doors with new ones. Steel. Insulated. With windows in one panel.

With mine, the bottom became water logged. When dry they still worked fine. But with rain they became extremely heavy. The doors were sucking up the water/moisture. Yes, you can probably find any garage door person to purchase a new panel for bottom.

And note. Garage doors come in many colors and textures. You don't have to settle for white - obviously if you have white then keep white.

Note. For many/most - one company only manufactures the panels while other companies manufacture the hardware.