Prepare the Construction Site and Foundation

The process of building construction involves many steps. It can be quite complex, and requirements may vary by state or region. However, the overall construction process for building an apartment building or commercial facility is similar. To help you understand it, here are some of the key elements a commercial building construction process flow chart includes:

Building Construction Process: From Start to Finish

Multi-colored safety helmets for engineering and worker construction site

The construction crew must remove rocks, trees and debris, and level the site. Wood is laid to create a mold for the concrete to be poured. Rebar is often added to concrete molds for strength. After the concrete is poured, it must be allowed to cure before any other construction activity can take place. Then the crew backfills any excavated dirt around the foundation, before the first major inspection is performed.


The frame is essentially the skeleton of the building and includes all floor, wall, and roof systems. Stick framing is the most common method. It involves using steel or wooden studs to connect each piece of the building frame. Once the frame is completed, wood sheets are attached to enclose the building. A special wrapping may be used to prevent water infiltration.

Siding and Roofing

The exterior of the structure is completed with siding options such as steel, aluminum, wood, vinyl, or cement. Roofing materials are installed as well. These may include shingle, tile, or metal roofing. Foam roofing is an energy-efficient option for flat roofs.

Doors and Windows

The structure is further sealed from the outside with entry and other doors. There are many styles of doors and options such as enhanced security and energy efficiency. Often, energy-efficient windows are used and include materials such as wood, aluminum, vinyl, or fiberglass; composite windows are common as well.

Piping and Electrical Installation

With the building shell completed, pipes, sewer and water supply lines, and HVAC ductwork and vent systems are installed. Wires are then run through interior walls, floors, and ceilings. At this stage, bathtubs and showers are also placed at their point of use. Inspections of rough framing, plumbing, and electrical/mechanical systems are performed next to ensure all are code compliant.

Insulation and Drywall

Insulation, which can be in the form of rolls, spray foam, or blown-in material, can provide energy savings and soundproofing. Drywall covers the interior walls prior to priming and painting. It is taped to cover seams between the boards and can be textured as well.

Trims and Fixtures

Professional construction engineer holding paper rolls

Decorative trims are installed along walls, windowsills, and interior doors. Cabinetry and other furnishings are installed next, including remaining hard flooring, carpets, and bathroom fixtures. Exterior landscaping may be tended too as well. Next, a final inspection certifies the building for occupancy.

Final Walkthrough

The contractor does a walkthrough with the client, going through all the points on the completion list. During this step, the builder discusses building systems and components, maintenance, and any items omitted or that need to be fixed or adjusted. If the work performed was different from the original plan, a change order will be generated from the list.

Work with a Leader in General Contracting

At Derk Harmsen Construction, we are experts in the building construction process from start to finish. We have served the Houston area since 1979 and handle all phases of commercial building.


Call 281-479-3400 today for a free consultation and estimate.