Structural calculations are needed to meet the quality standards of building supervisory engineers and to ensure that any construction work they start is constructive. All of these calculations are performed using Computer-Aided Design (CAD) software. They are mostly needed for attic reconstruction, minor expansion, or complete renovation. Structural calculations are included in the final project drawings, which are submitted to the building inspector for approval before construction starts.

Structural calculations assure that a new renovation or expansion matches the existing architectural style of the house. Minor deviations or sudden expansions can have a negative impact on the value of your home or building. The designer's expertise is based on creating design solutions to ensure that your renovation is in sync with the rest of your building in all conditions – be it flow, lighting or design.

Important factors to consider are:

• Windows, doors, and fixtures
• Roof, wall, and foundation design
• Changes / extensions / reconstruction of attics
• Calculation of steel beams
• Shape, dimensions, and symmetry
• Retaining walls

Making a good set of structural calculations involves the following steps:

Structural engineers from designing companies such as Bm outsourcing collect complete measurements and drawings of existing buildings, including landscape surveys to locate ducts, power lines, and other services.

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Compilers create working drawings using pre-computer technology (CAD). Once you are satisfied with the design drawing, he will prepare the drawing for approval.

Technicians provide complete construction documents with detailed sections and foundation plans that comply with local construction department regulations.

After the plan is approved, the civil engineer prepares a final presentation which includes a complete set of working drawings, technical specifications, calculations, and all relevant documents from local authorities.