Construction documentation: local estimates

During construction works on a fairly large objects often happens that immediately identify its total estimated cost is almost impossible.It is no secret that the prices of raw materials, construction materials, all kinds of equipment, tools, labor, etc. are constantly changing, and often upwards.In addition, we should not exclude the possibility of force majeure, which are usually specified in the contract.For this reason, under construction or repair it makes sense to make this type of document as a local estimates.It is absolutely appropriate and informed decision as to the size of the initial stage of the final costs are not defined, and may be called only the approximate cost of the works at the moment.Toward the end of the estimated cost of repairs could change, and the customer may not be willing to bear the additional costs.

What is the local estimates for civil works?It is the primary document that is calculated for certain types of work and costs undertaken at any particular area of ​​the object.Initially, the averages are taken that in the future, in the preparation of the rest of the working documentation, refined and agreed with the customer.Any estimates of construction and repair works are calculated using certain rules and regulations contained in special directories.Most often, such a reference is SNIP.Since it is officially approved standards, conscientious contractors will not shy away from them toward their violent fantasies.

Local estimates contains at its core the volumes, measurements and the costs that are specified in the working drawings and documentation.It is one part of the total, the object estimate, which combines in itself the data on all local estimates produced at the facility.Also include other documents present summary estimates, which are calculated in certain types of expenses across the construction site.It is necessary to ensure that, inter alia, to identify unforeseen expenses.

However, there are not only local estimates, object and summary: This document type can be formed, for example, only at some certain kind of work.It may be the construction and installation, repair, finishing and other works;may estimate only electrical or only for plumbing.If we talk about methods of writing, one of the most common can be considered a resource.The calculation using this method is carried out using the current or projected tariffs and prices for the cost elements necessary for the proper performance of works.When you perform a resource calculation taken as a basis the following information:

  1. need those or other materials, the amount of which is expressed in units of measurement (meter square or chase, kilograms, tonnes, liters, etc.);
  2. the operation of construction equipment and machinery;
  3. labor costs of workers;
  4. consumption of energy, which are used for technological purposes, and more.

All of these resources are calculated on the basis of project materials and specialized regulatory sources.

also local estimates, and others may be drawn-basis-index method.It is based on the use of both current and forecast indices relative to the value that was determined in the base price level.Often, in order to make estimates, using resource-index method.Its essence lies in the combination of the two previous methods.Another version of the document in high demand: it is based on the use of certain data included in the project documentation previously built similar facilities.