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Build a garage

  • Difficulty Level: hammer hammer hammer
    Close Difficulty Levels
    Beginner Do-It-Yourselfer - Easy
    Intermediate Do-It-Yourselfer - Moderate
    Experienced Do-It-Yourselfer - Difficult
    Professional - Expert
  • Cost Level:
    Close Cost Levels
    Cost comparable to current options
    Cost slightly more than the current options
    Cost high compared to current options
    Cost very high compared to current options
  • Completion Time : 10 Days

Building a garage is similar in many ways to building a shed. Aside from the excavation and foundation work, which is best left to specialist contractors, if you are a handy do-it-yourself you should be able to complete most of the work involved in this major project and so add to the resale value of your home.
The following steps describe how to build a 16' × 22' garage. They provide the main guidelines and give an idea of the skill level required to undertake such a project.


Tools and materials required


  • Stapler
  • Pneumatic nailer
  • Ratchet wrench
  • Chalk line
  • Utility knife
  • Plumb line
  • Caulking gun
  • Hammer
  • Carpenter's level
  • Electric drill and drill bits
  • Boundary stakes
  • Nail punch
  • Measuring tape
  • Circular saw
  • Square


  • Roof shingles
  • Framing lumber
  • Treated lumber
  • Shims
  • Tarred fibreboard
  • Plastic roof cement
  • Finishing nails
  • Galvanized nails and screws
  • Plywood
  • Window
  • Roof trusses
  • Drip edge
  • Self-adhesive membrane
  • Air barrier membrane
  • 15 lb felt paper
  • Exterior door
  • Garage door
  • Silicone-based caulk
  • Exterior cladding and moulding
  • Joist hangers

Before Assembly


Garage front elevation











  • Several weeks before you plan to start your project, talk to your municipal building office about permits or any specific conditions you’re required to meet given the size and scope of your project. Also contact your local utility company to locate and mark any buried power, water, or gas lines.
  • Before you begin, read the plan from start to finish. Get a feel for the steps in the assembly process and the materials involved.
  • Set aside enough time to do the job, taking daylight and preparation time into account. Check the weather; it’s important to work on calm days when no wind or rain is forecast.

Roof trusses, frames composed of structural members, are designed and built in a special manufacturing facility to the exact specifications of the garage plan. Roof trusses are designed to withstand vertical pressure only. For this reason, they should never be lifted horizontally or laid flat across exterior walls.


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RONA Langdon Hardware Ltd. / Fort Erie

1238 Dominion Road, Fort Erie,
Ontario, L2A 1H7

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(289) 320-8250