A drive arrangement to open and close a door curtain of an overhead sectional door. The arrangement includes a door guide track for guiding movement of the door curtain between a closed, lowered position and an open, overhead position, and a drive mechanism for driving the door curtain between the closed and open positions. The drive mechanism comprises a drive belt located to a side of the door opening, guided to follow an inverted L-shaped locus by a drive belt guide track, a linkage between the drive belt and the door curtain, and a drive motor which drives the drive belt to open and close the door curtain as the drive belt follows the locus.