Check how much high lift the room allows, then get the drum, turns, cable length, and spring sizing for the conversion.
Room & Door
Floor-to-Ceiling Height (in)
Door Height (in)
References & Standards
- Turns = (door height + lift) / drum circumference + 1 — SSC Spring Engineering convention
- ANSI/DASMA 110 — Standard for Lifting Cables for Sectional Type Doors
- DASMA TDS 160 — Sectional Garage Door Terminology