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Sectional Overhead Door Calculator
Calculate key requirements like headroom and backroom for a standard sectional overhead door installation.
Planning for a Sectional Door
Sectional overhead doors are the most common type of garage door in North America. They are composed of horizontal panels (sections) that roll up on a track system. Proper installation requires careful measurement of not just the opening, but also the headroom (space above the door) and backroom (depth into the garage) clearances.