ESTIMATING CONSTRUCTION
In this step we are going to analyze the Itemized offer , we will make a careful analysis of necesary activities for each task of the new Construction Work
A common and effective practice is dividing the tasks of Construction Work accord to the diferent specialities for example

Here we will analyze the cost of wages for the Construction , where the staff work 10 hours a day from Monday to Saturday
In accordance with labor legislation in force, which are ordinary hours 8 hours Monday through Friday and first 4 hours on Saturday ... we can write

To make a quick estimate of the man hours needed for the execution of works of Reinforced Concrete, we must add the following times

1-Time to Manufacture and Filling of Concrete
For this task and for the case that the concrete is manufactured by hand and the work is at floor level, we take a conservative 8-hour time man x m3 for manufacturing and filling of the concrete.
If we worked with a Concrete Plant Works installed with trucks mixer (in optimum conditions) should compute 1.5 hours per m3