Definition of "constructing"

Only the construction of wood and canvas castles, temples, and the like would require some time: and not as much as might be thought, given both London's fixed structures - such as conduits, and the Cross in Cheapside - upon which and around which structures could be erected, and London's practice in the frequent necessary constructings of such pageants.

2002, Anne Lancashire, London Civic Theatre: City Drama and Pageantry from Roman Times to 1558