Location: Prominent Hill Mining Construction Site South Australia

This four tread stair formwork is held together with 4 z-bar bolts, held down with pins at the front and wedges (to the structure) at the back, and braced with one timber on each side and two timbers at the back.

Four Tread Stair Formwork

Four verticle plywood cleats were also added to the back corners to prevent the rear concrete form from blowing out.