How to define amounts of completed work

How to define amounts of completed work

It becomes necessary to define amounts of completed work at construction, carrying out reconstruction and repair. Control over them allows the customer to trace performance of each stage and to pay only those works which were really executed. Correctly to determine volumes, you should consider some essential moments.

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Calculation of the executed amounts of works it is necessary to make on the finished elements of a design and a type of works. Surely observe sequence of calculation to use the received result when determining results of the subsequent calculations. There is a certain sequence caused by these specifics.

According to the marked specifics, at first apertures in external walls – doors, windows, gate, then apertures in internal rooms of the building – doors, transoms, gate are shorthanded. Then consider the base, the performed earthwork, works on a construction of a framework, walls, partitions, floors, overlappings, coverings and a roof. Ladders, a porch, works on exterior and internal finish, other construction and repair work osmechivatsya in summary.

When determining a total structural volume of the building, you should consider that it does not join the volume of drives, the porticoes opened and the covered balconies, but volumes of loggias, niches, bay windows, verandahs and light lamps enter. The room of an attic intended for the technical purposes is also not considered in a total amount of the building, and here mansard rooms should be considered.

For calculation of volumes of construction works use data of the project taking into account classification of soil, the steepness of slopes and depth of a zalozheniye of a sole of the base, according to Construction Norms and Regulations of IV-2-82, Construction Norms and Regulations of III, t. 9, section of B, hl. 1. Depth of a ditch or trench, dug for production of the base of walls accept on design marks from a sole to that mark which existed for the beginning of performance of earthwork. It is called as "a black mark". - the planning mark is called as "red".

Combined designs, calculation of their volumes are complicated with that single quotations do not consider the cost of designs, they included only the cost of a complex of works on installation. Two positions – determination of cost of installation works on single quotations and at the current prices of designs are usually provided in the estimate. Use of different units of measurements complicates calculation – in the first case design units are used, and wholesale prices are defined usually on 1 sq.m of the area or 1 CBM of concrete.