I have just had a roll up steel door installed on my old (1924) garage. Because the driveway is sloped from left to right (looking from the front of the garage) there is a 3 1/2 inch gap on the far left side between the garage door bottom and the driveway. This tapers down to nothing about 14 feet across the 16 foot door.

Anyone know of an adaptor that would attach to the garage door bottom to fill this gap?
Any ideas about how to cope with the long, low right triangle of an opening?
Thanks,

Looks like 2 options, cut a triangle out, or add a triangle. Good luck
If you cut the triangle out, use a level. You may need to adjust the limit for down position.

Have sheet metal shop fabricate 16' U channel with legs at least 5". Remove bottom seal attach U channel to fit floor , reattach bottom seal.