Retractable door gear is much more robust and the side spring mechanism can support the heavier double size doors that are wider than 8ft.
Retractable garage door gear.
They are quick and easy to install and also provide the full drive through width when open unlike the retractable mechanism.
The optimum single garage door size is about 8 0 wide 2438mm to allow easy access of a vehicle the height depends on other factors such as.
The retractable garage door has the most robust type of up and over garage door lifting mechanism using multi tension springs at the sides with steel lifting arms and horizontal steel tracks it can take much heavier loads the retractable name is derived from the garage door panel retracting almost fully into the garage when open.
Retractable up and over garage door gear is a very reliable robust and smooth operating mechanism that can easily be automated without the need for any additional conversion equipment.
Canopy bow arm converter and is therefore more expensive to convert to a remote control door.
This garage door type can be made remote control but requires extra equipment i e.