**ABSTRACT**

The subsisting methods of unit rate pricing in the construction industry are either determinate on

immediate use basis (analytical pricing) or predictive (cost modeling). The literature cited in this paper

showed that cost models used in the industry are spurious. Most of the models attempts to respond to

whole building cost from inception to completion with a single formula. This paper argues that on the

basis of the units of measurement of the various building elements, a holistic cost model for pricing a

complete building cost is a near impossibility. Rather as a negation cost model on the basis of each

work item is idealized. Accordingly, this paper responded by generating a unit rate cost model for

weld mesh reinforcement. This was done by abstracting and decomposing the relevant cost data and

using productivity study by time and motion to determine the various outputs for materials and labour.

These were subsequently factored to the cost data to derive the unit rate cost. The paper concludes that

the model enjoys flexibility of further mathematical treatment should any of the variable be

constrained and recommends that other work items should be modeled if the cost of a project must be

known and this model should be used to justify contractor’s tender for weld mesh reinforcement bid.

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