Event Description Expected Time [in weeks} Preceding Event Events and Activities In A Approve design and get permits 10 None Constructing an Ofce B Dig subterranean garage 6 A Building C Erect frame and siding 14 E D Construct flour 6 C E Install windows 3 C F Put on roof 3 C G Install internal wiring 5 D. E. F H Install elevator 5 G I Put in oor covering and paneling 4 D J Put in clears and interior decorative turn 3 I. H K Turn ever to building management group