In the correct sequence for installing a bifold door, which component comes first?

The correct first step in installing a bifold door is to first install the top track. This is critical because the top track provides the necessary support and guiding mechanism for the door panels as they are opened and closed. Without securing the top track first, it would be difficult to align the upper pivot and ensure the door operates properly.

Starting with the top track allows the installer to establish a level and stable foundation for the bifold door system. Once the top track is firmly in place, the subsequent steps can be effectively carried out, including inserting the upper pivot, lower track, and bottom pivot. This sequence ensures that each component of the bifold door can operate as intended, reducing the risk of misalignment or malfunction during use.