How to Build a House: What does the General Contractor Do?

For the General Contractor (GC), the process of building a house in the United States typically involves several steps. These steps may vary slightly depending on the location and specific requirements of the project, but the following list is a general overview of the process:

Steps to building a house – timeline

Throughout the process, the GC has the task to manage subcontractors, order materials, and coordinate with the client (prospective homeowner ) to ensure that the project stays on schedule and within budget.

Building a House – Working with the General Contractor.

As a prospective homeowner, you may have questions about the process of building a house with a General Contractor (GC) in the USA. Here is a detailed explanation of the steps involved as you work with a general contractor (GC): Remember, his work is typically project management and working through subcontractors (‘subs’).

  1. Initial Planning: The GC will work with you to understand your needs, preferences, and budget for your new home. This may involve discussing the size and style of the house, the number of bedrooms and bathrooms, the layout of the rooms, and any specific features you would like to include.
  2. Site Preparation: The GC will help you choose a suitable location for your new home, taking into account factors such as the view, privacy, access to amenities, and potential building restrictions. They will then prepare the site by clearing the land, leveling the ground, and installing utilities such as water, electricity, and sewage.
  3. Design and Permitting: The GC will work with an architect or designer to create detailed plans for your new home. They will take into account your preferences and needs, as well as any building codes or regulations that apply to your area. Once the plans are finalized, the GC will obtain the necessary permits from local authorities before starting construction.
  4. Foundation: The GC will excavate the ground and pour the foundation for your new home. This will involve constructing walls and installing a slab or crawl space. The foundation is a critical part of the construction process, as it provides the stability and support needed for the rest of the house.
  5. Framing: The GC will construct the frame of your new home using wood or other materials. This includes building the walls, roof, and floors. Once the frame is complete, the house will begin to take shape.
  6. Electrical, Plumbing, and HVAC: The GC will install the electrical, plumbing, and HVAC (heating, ventilation, and air conditioning) systems in your new home. This will involve running wires and pipes through the walls and floors, as well as installing fixtures such as light switches, outlets, sinks, and toilets. The HVAC system will be designed to keep your home comfortable and energy-efficient throughout the year.
  7. Insulation and Drywall: The GC will install insulation in the walls, ceilings, and floors of your new home. This helps to regulate the temperature inside the house and reduce energy costs. They will then hang and finish the drywall, creating a smooth surface for painting or wallpapering.
  8. Finishes: The GC will install the finishes in your new home, including flooring, cabinets, countertops, fixtures, and other details. This is where you can really start to see your vision for your new home come to life, with finishes that reflect your personal style and taste.
  9. Exterior: The GC will install exterior finishes such as siding, roofing, windows, and doors. This will help to protect your home from the elements and enhance its curb appeal. You may have the opportunity to choose from a variety of finishes and colors to create a look that suits your preferences.
  10. Final Inspection: Once construction is complete, the GC will schedule a final inspection with the local building department to ensure that your new home meets all building codes and regulations. This is an important step to ensure that your home is safe and structurally sound.
  11. Move-in: Once your new home has passed the final inspection, the GC will hand over the keys to you and your family. This is an exciting moment, as you finally get to move into the home you’ve been dreaming of. The GC will be available to answer any questions you may have and provide ongoing support as needed.

Throughout the process, the GC will manage subcontractors, order materials, and coordinate with you to ensure that the project stays on schedule and within budget. Building a new home can be a complex process, but with the help of an experienced GC, the process can be effectively completed.

What kind of timeline is involved in building a house?

The timeline for any build different for every house. Each house build depends on quite a number of factors. The GC has the challenging task of juggling multiple schedules and work teams ( subs ) to get the final finished product complete. The prospective owner should understand that flexibility and patience will be key to a healthy relationship with the GC.

With that in mind, the following list is a general sample timeline for building a house just to give you a idea.

Steps to building a house – timeline

  1. Initial Planning: 2-4 weeks, depending on the complexity of the project and the level of detail required.
  2. Site Preparation: 2-4 weeks, depending on the size and condition of the site and the amount of work required.
  3. Design and Permitting: 4-8 weeks, depending on the size and complexity of the project and the time required to obtain necessary permits.
  4. Foundation: 2-4 weeks, depending on the size and complexity of the foundation and the type of soil on the site.
  5. Framing: 4-8 weeks, depending on the size and complexity of the project and the availability of materials and labor.
  6. Electrical, Plumbing, and HVAC: 2-4 weeks, depending on the complexity of the systems and the availability of skilled tradespeople.
  7. Insulation and Drywall: 2-4 weeks, depending on the size and complexity of the project and the availability of materials and labor.
  8. Finishes: 4-8 weeks, depending on the size and complexity of the project and the availability of materials and labor.
  9. Exterior: 2-4 weeks, depending on the size and complexity of the project and the availability of materials and labor.
  10. Final Inspection: 1-2 weeks, depending on the availability of the building department and the complexity of the project.
  11. Move-in: This can vary widely depending on the individual circumstances of the homeowner, such as the time required to sell an existing home or find temporary accommodations during the construction process.

Keep in mind that these timelines are just estimates and can vary depending on factors such as weather, availability of materials and labor, and unforeseen challenges that may arise during the construction process. Your GC will be able to provide a more detailed timeline for your specific project once they have a better understanding of your needs and preferences.

What kinds of materials are needed to build a house?

Here is a sample list of building materials :

Foundation:

  • Concrete
  • Rebar

Framing:

  • Lumber (2x4s, 2x6s, etc.)
  • Nails, screws, and other fasteners
  • Exterior sheathing (OSB or plywood)
  • Roofing materials (shingles or metal)

Exterior:

  • Siding (vinyl, fiber cement, wood, etc.)
  • Brick or stone veneer
  • Windows and exterior doors
  • Gutters and downspouts
  • Exterior trim and moldings

Insulation:

  • Fiberglass batts or blown-in insulation
  • Vapor barrier

Drywall:

  • Drywall panels
  • Joint compound
  • Drywall tape

Flooring:

  • Hardwood, laminate, or engineered wood flooring
  • Ceramic or porcelain tile
  • Carpet or other soft flooring options

Electrical:

  • Electrical wire and cables
  • Electrical boxes, outlets, and switches
  • Light fixtures and ceiling fans
  • Circuit breaker panel and breakers

Plumbing:

  • Copper, PVC, or PEX piping
  • Plumbing fixtures (sink, toilet, shower, bathtub)
  • Water heater
  • Drainage and waste piping

HVAC:

  • Furnace or heat pump
  • Air conditioning unit
  • Ductwork and vents
  • Thermostat

Other:

  • Interior doors and trim
  • Cabinetry and countertops
  • Paint and other finishing materials
  • Hardware (door knobs, cabinet pulls, etc.)

Keep in mind that this list is not exhaustive and can vary based on individual preferences and local building codes. Your GC or architect will be able to provide a more detailed list of building materials specific to your project.

Can you estimate the amount of materials needed to build a 3 bedroom, 2 bath, 2000 square foot ranch with a 2 car garage?

Providing specific quantities for each material on the list would be difficult without more detailed information about the design of the house and the specific materials and finishes that the homeowner has selected. However, here are some general guidelines and sample quantities for the building materials needed for a 3 bedroom, 2 bath, 2000 square foot ranch with a 2 car garage:

Foundation:

  • Concrete: approximately 100 cubic yards
  • Rebar: approximately 2 tons

Framing:

  • Lumber: approximately 14,000 board feet
  • Nails, screws, and other fasteners: approximately 50 pounds
  • Exterior sheathing (OSB or plywood): approximately 100 sheets
  • Roofing materials (shingles or metal): approximately 25-30 squares (1 square = 100 square feet)

Exterior:

  • Siding: approximately 25-30 squares
  • Brick or stone veneer: approximately 200-300 square feet
  • Windows and exterior doors: 10-15 units
  • Gutters and downspouts: 100-150 linear feet
  • Exterior trim and moldings: varies depending on design

Insulation:

  • Fiberglass batts or blown-in insulation: approximately 1,000 square feet
  • Vapor barrier: approximately 1,000 square feet

Drywall:

  • Drywall panels: approximately 200 sheets
  • Joint compound: approximately 50-75 pounds
  • Drywall tape: approximately 5-10 rolls

Flooring:

  • Hardwood, laminate, or engineered wood flooring: approximately 1,000-1,200 square feet
  • Ceramic or porcelain tile: approximately 500-600 square feet
  • Carpet or other soft flooring options: approximately 500-600 square feet

Electrical:

  • Electrical wire and cables: varies depending on design
  • Electrical boxes, outlets, and switches: varies depending on design
  • Light fixtures and ceiling fans: varies depending on design
  • Circuit breaker panel and breakers: varies depending on design

Plumbing:

  • Copper, PVC, or PEX piping: varies depending on design
  • Plumbing fixtures (sink, toilet, shower, bathtub): varies depending on design
  • Water heater: varies depending on design
  • Drainage and waste piping: varies depending on design

HVAC:

  • Furnace or heat pump: varies depending on design
  • Air conditioning unit: varies depending on design
  • Ductwork and vents: varies depending on design
  • Thermostat: 1 unit

Other:

  • Interior doors and trim: varies depending on design
  • Cabinetry and countertops: varies depending on design
  • Paint and other finishing materials: varies depending on design
  • Hardware (door knobs, cabinet pulls, etc.): varies depending on design

Keep in mind that these quantities are just estimates and can vary depending on factors such as the design of the house, the materials and finishes selected, and the specific needs of the homeowner. It is best to consult with your GC or architect for a more accurate estimate of the quantities needed for your specific project.

Outline for building a house

The following is a simplified outline of the steps needed to build a house. You could use this as a quick reference guide.

I. Planning and Design

A. Determine the size and style of the house

  1. Consider the number of bedrooms and bathrooms needed
  2. Decide on the type of architectural style, such as traditional, modern, or contemporary
  3. Determine the overall square footage of the house

B. Create a budget and project timeline

  1. Research and compare costs of different building materials and labor
  2. Create a detailed budget and timeline, including contingencies for unexpected expenses
  3. Hire a designer to create detailed plans and blueprints

C. Obtain necessary permits and approvals

  1. Research and comply with local zoning and building codes
  2. Submit plans and building permits to the appropriate city or county agency
  3. Obtain any necessary approvals from community associations or homeowner’s associations

II. Site Preparation and Foundation

A. Clear and level the building site

  1. Remove any trees, shrubs, or other obstacles on the lot
  2. Grade the lot to create a level building pad
  3. Install any necessary retaining walls or drainage systems

B. Install the foundation

  1. Determine the type of foundation needed (such as crawl space, full basement, or slab)
  2. Excavate and prepare the site for the foundation
  3. Pour the concrete foundation and allow it to cure

III. Framing and Structural Elements

A. Erect the wooden frame

  1. Erect the walls, floors, and roof
  2. Install the structural elements, such as load-bearing walls, beams, and joists
  3. Ensure the structure is square, plumb, and level

B. Install the roofing

  1. Install the rafters, trusses, or other structural elements
  2. Install the roof sheathing and decking
  3. Install the shingles or other roofing material

IV. Plumbing, Electrical, and HVAC Systems

A. Install the plumbing system

  1. Run the water supply and drain lines
  2. Install the fixtures, such as sinks, toilets, and showers
  3. Connect the system to the main water supply and sewer lines

B. Install the electrical system

  1. Run the electrical wiring throughout the house
  2. Install electrical panels, outlets, switches, and lighting fixtures
  3. Connect the house to the main power supply

C. Install the HVAC system

  1. Install the furnace, air conditioner, and ductwork
  2. Connect the system to the main gas and electricity supply
  3. Test the system to ensure proper operation

V. Interior Finishes and Exterior Finishing

A. Install the interior finishes

  1. Install the flooring, such as hardwood, tile, or carpet
  2. Install the drywall and paint or wallpaper the walls
  3. Install the trim, molding, and cabinetry

B. Install the exterior finishes

  1. Install the siding and windows
  2. Install the doors and garage doors
  3. Install any outdoor decks, patios, or other amenities

VI. Final Inspections and Move-In

A. Obtain final inspections

  1. Schedule and pass final building inspections with the city or county agency
  2. Obtain any necessary final approvals from community associations or homeowner’s associations

B. Move-in and enjoy the new home

  1. Pack and move belongings into the new home
  2. Perform any necessary final cleaning or touch-ups
  3. Enjoy the new home and begin making it a place to call your own.