At a minimum, look for the following:
- Custom threshold consisting of both custom concrete work & a custom REAL driveable threshold to seal the weather out
- Fully mortised Flush Bolts on inactive door located at the top and bottom of the door for impenetrable access
- Custom Astragals; inside or outside mounting
You can really see the quality differences at www.vintagegaragedoor.com They build custom doors to last for YEARS.
