PLANNING, ESTIMATING, AND SCHEDULING
Good construction planning and estimating
procedures are essential for the Naval Construction
Forces (NCFs) to provide quality construction
response to the fleets operational requirements. This
chapter gives you helpful information for planning,
estimating, and scheduling construction projects
normally undertaken by Seabees.
The material is
designed to help you understand the concepts and
principles involved; it is not intended to be a reference
or to establish procedures. The techniques described
are suggested methods that have been proved with use
and can result in effective planning and estimating. It
is your responsibility to decide how and when to
apply these techniques.
Later in the chapter, you will encounter helpful
tables to aid you in effective planning and estimating.
Keep in mind that these tables are not intended to
establish production standards. They should be used
with sound judgment and in accordance with
established regulations and project specifications.
Man-hour tables are based upon direct labor and do
not include allowances for indirect or overhead labor.
We provide helpful references at the end of the
chapter. You are encouraged to study these, as
required, for additional information on the topics
LEARNING OBJECTIVE: Upon completing
This section, you should be able to identify
basic planning, estimating, and scheduling
In planning any project, you must be familiar with
the vocabulary commonly associated with planning,
estimating, and scheduling. Here, well define a
number of terms you need to know as a Builder.
Planning is the process of determining
requirements, and devising and developing methods
and action for constructing a project. Good construc-
tion planning is a combination of many elements: the
activity, material, equipment, and manpower esti-
mates; project layout; project location; material
delivery and storage; work schedules; quality control;
special tools required; environmental protection;
safety; and progress control. All of these elements
depend upon each other. They must all be considered
in any well-planned project.
Estimating is the process of determining the
amount and type of work to be performed and the
quantities of material, equipment, and labor required.
Lists of these quantities and types of work are called
Preliminary estimates are made from limited
information, such as the general description of
projects or preliminary plans and specifications
having little or no detail. Preliminary estimates are
prepared to establish costs for the budget and to
program general manpower requirements.
Detailed estimates are precise statements of
quantities of material, equipment, and manpower
required to construct a given project. Underestimating
quantities can cause serious delays in construction
and even result in unfinished projects. A detailed
estimate must be accurate to the smallest detail to
correctly quantify requirements.
An activity estimate is a listing of all the steps
required to construct a given project, including
specific descriptions as to the limits of each clearly
definable quantity of work (activity). Activity
quantities provide the basis for preparing the material,
equipment, and manpower estimates. They are used
to provide the basis for scheduling material deliveries,
equipment, and manpower.
estimates are used to prepare
other estimates and