How to Build a Garage Yourself (Part 1)

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Today we want to share with you something special:

Discover How to Build a Garage DIY

  • Working Time: 2 - 4 wks
  • Skill Level: Advanced
  • Estimated cost: $15,000 to $40,000

Building a garage on your property protects several of your most valuable assets - your vehicles. Rain, snow, and ultraviolet rays from the sun can quickly damage vehicles outside of garages.

Not only that, but building a garage adds substantial value to your property. On average, homes with garages value 20% more than homes without garages. Also, homes with garages sell faster and more easily than homes without garages.

Building a garage yourself is a serious project, but it can be done with enough motivation, planning, and knowledge. By taking on the project yourself or outsourcing parts of it, you can save money by hiring a full-service general contractor.


Garages can be attached to the side of the house, in the back, or sometimes in the front. The attached garages allow you to access the home garage. These garages cost more to build than insulated garages but have a higher resale value.

Consider zoning and setbacks. Garages on the side of the house must be away from the property line by a certain distance that is determined by local zoning restrictions. Back garages have fewer zoning issues and hiccups, but you will need to provide access to the side of the house for vehicles.

Before Starting

A garage is a substantial structure and its plans must be drawn up by an architect, contractor, or design and construction company. Oftentimes, the exterior design of the garage is predetermined by the style of the house. The siding, roof, color, and windows usually match those of the house itself.

A two-car garage is typically 24 feet by 24 feet, with one or two garage doors, a door to the house, a side door to the outside, and one or two windows.

You will also need to obtain all building permits, even if you build the garage yourself. The structure itself must be licensed and inspected by local municipal inspectors.

Components inside the garage will need separate permits and inspections. An attached garage will need electrical wiring to provide the electrical outlets and lighting required by the code. If you install a sink, laundry room, or outdoor hose, you will also need to obtain plumbing permits.

Building a garage is an advanced project that requires you to be skilled in many trades. An alternative that still saves costs is to outsource some parts of the process and do others yourself.

What You'll Need

Equipment tools:

  • Nailer and compressor
  • Cordless drill
  • Electric saws
  • Measuring tape
  • Materials
  • Two times four
  • LVL beam
  • Death way
  • Coppersmith
  • Plywood or OSB siding
  • House wrap
  • Garage door
  • Drywall
  • Concrete


1. Build base plinths

The garage should have base skirting that extends below the frost line for your area, if necessary. A backhoe will dig into the ground at that depth. Wooden concrete formwork will be built for the foundations. The concrete is poured into the molds and allowed to cure.

2. Pour the concrete slab

A concrete contractor will tie metal rebar to act as the reinforcing base for the concrete slab. Then a concrete truck will pour the slab in a continuous pour, while the concrete workers will make the screed and finish the concrete.

3. build the walls

Carpenters will build the walls with double threshold boards at the top and bottom with vertical nails driven every 16 inches. Spaces are left for windows and doors. The 9-foot garage door headers can be made with LVL two-by-ten beams or laminate.

4. Build the roof

The prefabricated roof trusses arrive by truck and are placed in place by crane, with workers nailing the trusses.

5. Install tiles

Moving from the bottom up, the overlapping rows of roofing membranes are unrolled horizontally. The tiles continue. Like the membrane, the shingles start at the edge of the roof and move upward in overlapping rows.

6. Install Siding and Household Wrap

External 3/4-inch plywood or OSB board is nailed to the exterior of the garage and covered with a house wrap.

We hope you enjoy watching this video about How to Build a Garage By Yourself (Part 1)

Source: My DIY Adventures

To discover the next steps for build a Garage DIY, please click here: How to Build a Garage Yourself (Part 2)

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