Double Low Headroom Track

Double low headroom track is a specialized track setup for garages where the ceiling is very close to the top of the door opening. It uses an extra set of horizontal tracks for applications with very limited clearance above the header.

Standard track needs about 10-12 inches of clearance above the opening for the transition from vertical to horizontal travel. Low headroom track cuts that to around 4-8 inches. Double low headroom track cuts it further still.

Here is how it works. Two horizontal tracks run parallel above the opening, one above the other. As the door opens, sections alternate between the upper and lower tracks. They interleave like a fan spreading out. The result is that the stacked sections fit in less vertical space than they would on a single track.

The trade-off is depth. Double low headroom requires more back room behind the door. All those sections stacked in two layers need more horizontal space to clear the opening fully.

Hardware for this setup includes modified top fixtures. Each top fixture carries two rollers, one for the upper track and one for the lower. The flag brackets and back hangs must support both track channels at once.

The trajectory of the top section is different from a standard install. The arc it sweeps changes with the dual-track geometry. The installer checks that the top section clears the opener rail and any ceiling obstacles before calling the job complete.

Double low headroom is the last option when beams or ceilings cannot be moved.