7 feet.
32" is typical.
The standard garage door height is 7 feet (2.1 meters).
From what I gather, a typical cost of an electric garage door opener is around $150. However, with installation, it could run you a total cost of about $350 or so.
An average garage door installer makes about $11 per hour in a typical day.
9dw6h 9 by 7
Garage Door PhoenixGarage Doors come in standard sizes such a 8x7, 9x7,10x7,16x7,18x7 , these are the size for your typical 7 foot high Garage door they also come in the larger 8 foot high and 10 foot high sizes ,
Depending on the amount of wear and tear on the garage door. The avg time is around 20 years with a good replacement and upkeep;.
Either the garage door would need to be cut and adjusted in height to conform to the floor, or the floor would need to be modified to conform to the door. If the door bottom is near level, the floor should be built up to meet the door. If the floor is level, there are serious issues with the door. Consult a garage door installer.
For a single-door garage it would be about 9 x 8' or 8 x 7', and double doors usually go between 12 x 7' and 16 x 7'.
Typically, doorknobs are 36 inches above the floor.
A typical RV garage door will be 12'H x 12' W for travel trailers, fifth wheels, and smaller class B, class C, and older (hence lower than 12' exterior height) class A motorhomes. Newer class A motorhomes will require at least 13' overhead clearance, and the typical door size will be 14'H x 12' wide.