ABSTRACT
In the last chapter we introduced basic quantity take-off (QTO) procedures and applied them to those areas of direct work that many general contractor (GC) estimators begin their QTO with, the concrete substructure, including the foundation and slab-on-grade (SOG) systems. In this chapter we continue with GC self-performed direct work and pick up all of the remaining cast-in-place (CIP) concrete systems and pre-cast concrete systems, including site-cast tilt-up concrete walls. Our specific coverage includes:
Cast-in-place concrete elements and systems, including:
Columns,
Beams,
Walls,
Elevated CIP slabs,
Elevated slab on metal deck,
Post-tension (PT) concrete,
Pre-cast concrete elements and systems, including:
Columns,
Beams,
Slabs,
Walls, and
Tilt-up walls.
For our analysis, the concrete foundations and SOG are considered substructure and were included in the previous chapter. Additional concrete systems such as foundation walls and columns and beams and elevated decks may also occur below grade and would then technically be classified as substructure as well. But these systems also exist above grade and would therefore be considered superstructure. We have included these scopes of work in this chapter for convenience and to avoid duplication. Additional superstructure materials such as structural steel and wood framing are covered in the next two QTO chapters.
