Estimate for the construction of a residential building made of aerated concrete

Each serious construction begins with the preparation of project documentation and an estimate. This document allows you to perform calculations and estimate the amount of work, as well as monitor the expenditure of funds during the construction process. It is quite difficult to make an estimate on your own without an idea and understanding of construction processes. As a rule, in such a situation they turn to large construction companies, the staff of which provides for an estimate department. In this article, we will tell you how the estimate for the construction of a house made of aerated concrete is carried out.

Purpose of the construction estimate

The estimate for the construction of a house made of aerated concrete is the main financial document, which is an integral part of the contract for the construction of the structure of the developer's company. The main components of the document are two sections:

purchase of building materials;
construction work.

In addition to the main part, the calculation of technical and organizational issues is performed:

calculation of the scope of work;
construction period;
technologies used;
amount of material;
the number of specialists involved in the construction site;
stages of project financing.

The convenience of the estimate allows you to exercise control at any stage of the construction process, track the work schedule. Experts believe that a competently drawn up estimate fully pays for itself and justifies the planned construction. Another advantage of the document is the ability to minimize bureaucracy in various instances, it helps the customer to present a picture of all construction processes, and also gives the opportunity to make amendments even before the start of construction.

For information! You can order project documentation with a full calculation from several construction companies at once, so you can always choose the appropriate option for your construction by comparing documents, quality indicators of materials and understand what is the difference between them.

Large construction companies that value their reputation can invite the customer to discuss the nuances, and also help to reduce the expenditure part of the estimate without losing the quality of the structural features of the gas block house.

Type of estimated characteristics

Experts perform calculations in three ways: labor-intensive, universal and detailed.

Labor-cost estimate

Performed to determine the amount of work performed by contract teams. This method allows the contractor to negotiate with the customer, discuss all work points and receive funds to ensure wages. Salaries are usually calculated from 1 square meter of work performed. This method is the best option for a low-budget project.

Universal estimate

It involves the accounting and listing of all building materials used, taking into account the real market value, and their delivery. The advantage of this method is the constant control by the customer of the movement of work, as well as the ability to carry out a partial check at the cost of each material in the context of types. Such a document consists of 60 lines:

from 35-40 positions according to the materials used;
7% additionally contributed expenses for transportation services and its depreciation of the total cost of materials;
overheads;
staff salaries;
rental of premises is possible;
taxes.

For information! The universal method assumes to hide the position “projected profit” in the subcategory wages or the cost of building materials.

Expanded estimate

Such an estimate assumes a complete calculation of all costs for a turnkey aerated concrete house. This is a complete package estimate documentation, compiled in accordance with applicable standards and legislation. A detailed estimate is drawn up on the basis of special technological maps, calculations, technical conditions and types of work. The main advantage of this document is a complete understanding and an accessible presentation of cost items for a typical average customer.

The cost of the estimate can range from $ 50 to $ 200, depending on the complexity of the structural elements of the project.

Estimate for aerated concrete house

If you do not have the opportunity to complete the order of turnkey estimates from specialists, it is quite possible to draw up it yourself. The main thing in the process of calculating and allocating positions is to take into account all construction nuances and possible risks. We offer to analyze the main points and make an estimate for the construction of a two-storey house made of aerated concrete with an attic with a total area of 120 sq.m.

The foundation is shallowly buried with reinforced concrete tape, grade M250 is used as cement, reinforcement is made with 16 reinforcement bars. The cost of the foundation is equal to: 1510 thousand dollars, where 1 sq. M. is equal to 126 dollars.
The floor on the ground will cost 1510 thousand dollars.
The erection of the external wall structures of the first floor, taking into account the window and door lintels, and additional materials for laying the walls from the gas block will cost 3180 thousand dollars.
Internal wall structures, which are 2.2 meters high, will cost $ 950.
Construction of external walls on the second floor. This part of the estimate includes the cost of paying for equipment (KAMAZ all-terrain vehicle), loading and unloading blocks, special glue for aerated concrete. The cost of the work is 2200 thousand dollars.
Internal walls of the second floor. In this part of the document, the costs of sand, steel corners and die cutting bands are included. The cost will cost $ 750.
The overlapping device consists of monolithic reinforced concrete, with reinforcement in each wave. Height 11 cm, thickness 10-17.5 cm In the finished floor, there are openings for ventilation, a sewer pipe and a staircase. The cost of the work will cost 2,100 thousand dollars.
Roofing device. This section includes soft tiles, ventilation outlet and hood, end and cornice profiles, tile mastic. The cost of the work will cost 3850-4000 thousand dollars.
Attic insulation. This section assumes insulation of the room with a windproof fabric and vapor barrier. Of the materials, you will need double-sided tape, fasteners, (nails, screws), vapor barrier, thermal insulation. The cost will be $ 1,100.
Blind area. For the insulation of the structure, a profiled membrane, double-sided tape, loose pillows for making, equipment rental. The cost of the work will cost $ 700.

You can draw up such an estimate in a regular office program Excel. For a more detailed acquaintance with the step-by-step preparation of the estimate documentation, you can read the reviews on the forum of the owners of aerated concrete houses