Carport-to-Garage Conversion:
A Step-by-Step Guide
Many people convert their carport into a garage for more secure storage and better protection from the elements. While generally not too difficult, preparation is key.
Determine the steps to modify your carport, and calculate material and potential labor costs if not doing the project yourself.
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Essential Tools and Materials for Converting a Carport to a Garage
Here’s a list of tools and materials you may need for your carport-to-garage conversion project:
| Materials | |
|---|---|
| Concrete | Plywood |
| Lumber | Gravel |
| Insulation | Drain pipe |
| Particle board | Siding |
| Drywall | Door(s) |
| Materials to run electricity to the structure (e.g., metal conduit, electrical boxes, and switches) | |
| Tools |
|---|
| Nails |
| Screws |
| Hammer |
| Drill |
| Measuring tape |
Carport Conversion: Pros and Cons
Building a garage by converting a carport offers several advantages but also a few drawbacks.
Pros
Cons
What is the Cost of Converting a Carport to a Garage?
The cost of converting your carport to a garage will depend on several factors:
You may need to adjust the surrounding area for proper drainage, which can increase costs. Hiring a professional to convert your carport can add thousands of dollars to the overall expense.
In some cases, it might be more cost-effective to relocate or remove your carport and buy a new garage, especially if your current carport is in poor condition.
The standard cost for materials to convert a carport to a garage is between $8,000 and $10,000.
Not including permits or labor.
Typical Cost of a Carport-to-Garage Conversion
When converting a carport into a garage, the costs can vary depending on the size. Here’s an overview:
12×25 Carport
The average cost to convert it into a one-car garage is $15,050.
24×25 Carport
The average cost to convert it into a two-car garage is $21,650.
Here’s a breakdown of where those costs come from:
| Material/Item | Average |
|---|---|
| Concrete slab (installed, per sq ft) | $11 |
| Insulation (per sq ft) | $4.08 |
| Plywood walls (per sq ft) | $9 |
| Entry doors (per unit) | $760 |
| Windows (per unit) | $735 |
| Electricity (per wiring run) | $274 |
| Plumbing (per piping run) | $910 |
| One-car garage door (per unit) | $1,208 |
| Two-car garage door (per unit) | $1,233 |
| Garage door opener (per unit) | $590 |
| Garage door installation (per unit) | $315 |
| General contractor (per hour) | $30 |
Step-by-Step Guide to Converting a Carport to a Garage
Follow these detailed steps to successfully transform your carport into a functional garage
Check Local Codes and Plan
Permits may be required for a carport-to-garage conversion. Respect property lines and setback distances when expanding a carport. If close to a neighbor’s property, consult a land surveyor.
Plan carefully, ensuring the carport is sturdy and its height can accommodate a garage door. Work with a professional for accurate measurements.
Prepare the Carport
You will not need to dig a foundation for a carport conversion, but ensure the ground is stable with good drainage.
Remove any coverings from the joists and columns in the existing carport.
Build the Structure
Enclose the carport with walls using a pressure-treated bottom plate and wood studs spaced 16 inches apart. Cover the bottom plate with plastic to prevent moisture and attach the walls securely to the carport structure.
Add an access door and optional windows, ensuring the entrance door meets fire-safe requirements if attached to your house.
Install the Garage Door, Electricity, and Insulation
Ensure a slope at the door’s threshold for water drainage. Installing the garage door can be tricky; consider hiring a professional. Run electrical service and install garage insulation to regulate the temperature.
Complete the Transformation
Install drywall inside and siding outside. Add final design elements like paint or decorative moldings to personalize your garage. This completes your carport-to-garage conversion.
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Conversion Costs:
Best Value vs. Highest Cost
- High-end automatic garage door opener
- Premium insulation and boarding
- A new concrete foundation
- An additional access door
- New wiring and plumbing
- Two windows
Based on these conversion costs, you may find it more cost-effective to relocate or remove your existing carport and invest in a new garage, especially if the current carport is in poor condition.
DIY vs. Hiring a Professional
Thinking about tackling this project yourself? That’s great! But before you jump in, weigh the pros and cons of DIY versus hiring a professional contractor.
| Factor | DIY | Hiring a Professional |
|---|---|---|
| Cost | Lower (savings on labor) | Higher (includes labor costs) |
| Time | Significant time commitment | Less time involved (contractor handles the work) |
| Skills | Requires specialized skills and knowledge | Professional expertise ensures quality work |
| Tools | Need to own or rent necessary tools | Contractor provides tools and equipment |
| Risk | Potential for costly mistakes or injuries | Reduced risk of errors and accidents and potential warranty/guarantee |
| Permits & Inspections | You handle permits and inspections | Contractor manages permits and inspections |
Common Challenges and How to Overcome Them
Converting a carport into a garage can present some challenges, but with careful planning and execution, you can overcome them. Some of the most common obstacles (and solutions) are:
Uneven Ground
If the ground is uneven, you’ll need to level it with dirt or concrete. If the ground is uneven, you’ll need to level it with dirt or concrete.
Structural Problems
Your carport’s structure might require repairs or reinforcements to support a garage conversion.
Proper Drainage
Water must be directed away from the garage to avoid flooding, which may require gutters, downspouts, or a French drain.
Key Considerations Before Starting a Conversion Project
Converting a carport to a garage can be a valuable investment for extra storage or a protected workspace. Before you start, here are a few important factors to consider.
Additional Costs
Once your carport is fully enclosed as a garage, you may need more than just new garage doors, depending on your intended use. Besides material and labor costs, consider installing utilities, insulation, and security features if you plan to use the space as a workspace or additional living area.
Structural Integrity
Ensure the existing carport structure, including the foundation and support beams, is in good condition and sturdy enough for the conversion. If significant repairs are needed, it might be more cost-effective to purchase a new garage instead.
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