What to Consider Before Adding a Garage to Your House

Wednesday, August 07, 2024

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Adding a garage to your home can be a game-changer. Not only does it increase your home's value, but it also provides additional storage space and improved security. However, before you dive into construction, there are several important factors to consider.

Purpose and Functionality of Your Garage

When you're considering adding a garage to your home, understanding its purpose and functionality is crucial. The primary reasons for adding a garage can vary, but they often include vehicle storage, creating a workshop, or adding extra storage space. Each purpose comes with its own set of design considerations and features:

  • Vehicle Storage: Many homeowners add garages primarily to protect their vehicles from the elements. If this is your main reason, you'll need to consider the size of the garage, ensuring it's spacious enough to accommodate your vehicles comfortably. You might also want features like automatic garage doors, durable flooring, and proper lighting.
  • Workshop: If you're planning to use your garage as a workshop, you'll need ample space for workbenches, tools, and storage cabinets. Consider adding electrical outlets, good ventilation, and insulation to keep the space comfortable year-round.
  • Additional Storage: For those needing extra storage, think about adding shelves, cabinets, and possibly climate control to protect stored items from extreme temperatures and humidity.

Understanding the primary purpose of your garage influences its design and features significantly. It helps you determine the layout, size, and the types of materials you'll need. For instance, a garage intended for vehicle storage might prioritize easy access and durable surfaces, while a workshop would require robust electrical wiring and plenty of workspaces.

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Budget and Financing for Your Garage

Adding a garage to your home involves several costs, and it's important to plan your budget carefully to avoid unexpected financial strain. The main expenses include materials, labor, permits, and potential unexpected costs that might arise during construction.

  • Materials: The cost of materials will vary depending on the size of your garage and the type of materials you choose. Common materials include concrete for the foundation, framing lumber, roofing materials, siding, insulation, and interior finishes.
  • Labor: Hiring professionals for the construction, including builders, electricians, and plumbers, can be a significant portion of the cost. Labor costs will depend on the complexity of the project and local wage rates.
  • Permits: Obtaining the necessary permits can also add to the cost. Permit fees vary by location and the scope of the project.
  • Unexpected Expenses: It's wise to set aside a contingency budget for unexpected issues, such as soil problems, weather delays, or additional work required by building inspectors.

When setting a budget, start by getting multiple quotes from contractors to understand the range of costs. Be realistic about what you can afford and prioritize the features that are most important to you. Exploring financing options is also key:

  • Home Equity Loans: These loans allow you to borrow against the equity in your home, often at a lower interest rate than personal loans.
  • Construction Loans: These are short-term loans specifically designed to finance building projects. They typically convert to a mortgage once construction is complete.

Zoning Laws, Building Codes, and Permits When Adding a Garage to Your Home

Before starting construction on your new garage, it's essential to check local zoning laws, building codes, and obtain the necessary permits. These regulations ensure your project is safe, legal, and in compliance with community standards.

Understanding local zoning laws and building codes is crucial because they dictate what you can build, where you can build it, and how it must be constructed. Failing to comply with these regulations can lead to fines, forced changes, or even the demolition of your new garage. Here’s how you can navigate this process:

  • Research Local Regulations: Start by visiting your local planning department or their website. They can provide information on zoning laws and building codes specific to your area.
  • Permits Required: Typically, you'll need a building permit, and possibly electrical and plumbing permits if those systems will be installed. The planning department can tell you which permits are necessary and the steps to obtain them.
  • Consequences of Non-Compliance: Building without the proper permits can result in fines, legal action, and the requirement to make costly modifications or remove the structure altogether.

Common building code requirements often include:

  • Setback Distances: These specify how far your garage must be from property lines, roads, or other structures.
  • Height Restrictions: There may be limits on how tall your garage can be.
  • Fire Safety Standards: These can include requirements for fire-resistant materials, proper ventilation, and emergency exits.

By thoroughly researching and complying with all relevant regulations, you can ensure your garage project proceeds smoothly and legally.

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Determining Your Garage Size and Layout

Determining the appropriate size and layout of your garage is essential to ensure it meets your needs and fits within the available space. Several factors should guide your decision, including the number of vehicles you need to accommodate, your storage requirements, and any additional features like a workshop or loft space.

  • Number of Vehicles: Start by considering how many vehicles you need to store. A single-car garage typically requires a minimum of 12 feet by 20 feet, while a two-car garage usually needs at least 20 feet by 20 feet. If you have larger vehicles like SUVs or trucks, you might need more space.
  • Storage Requirements: Think about what else you’ll store in the garage. Items like lawn equipment, bicycles, or seasonal decorations need additional space. Plan for built-in shelves or cabinets to keep things organized and accessible.
  • Additional Features: If you want a workshop, plan for extra square footage to accommodate workbenches, tool storage, and possibly plumbing for a sink. A loft space can be useful for long-term storage but will require a higher ceiling and sturdy flooring.

Creating a detailed layout plan can help visualize the space and ensure everything fits comfortably. Consider future needs, too, as your requirements may change over time.

Design and Aesthetics for Your Garage

Designing a garage that complements the existing architecture of your home is important for maintaining a cohesive and appealing look. A well-designed garage can enhance your home's curb appeal and overall value.

  • Rooflines: Match the garage’s roofline with your home's existing roof to create a seamless transition. This helps the garage look like an integral part of the house rather than an afterthought.
  • Exterior Materials: Use the same or similar exterior materials as your home, such as brick, siding, or stucco. This consistency in materials contributes to a unified appearance.
  • Color Schemes: Choose colors that harmonize with your home's color palette. This includes the garage door, trim, and any accent colors.

By paying attention to these design elements, you’ll create a garage that enhances your home's overall aesthetic and blends naturally with the surrounding environment.

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Construction Materials to Consider When Building a Garage

Choosing the right materials for your garage construction is crucial for ensuring durability, cost-effectiveness, and ease of maintenance. While some materials are standard for new garage construction — for example, wood framing, shingles, and concrete slab foundations — the materials you install in your garage interior may require extra consideration.

Whether you choose drywall, plywood, or polyvinyl chloride (PVC) panels like Trusscore Wall&CeilingBoard for your wall cladding and medium density fiberboard (MDF) slatwall, MDF pegboard, or PVC-based Trusscore SlatWall for your on-the-wall storage is up to you. But first, consider these pros and cons.

Drywall

Choosing the right materials for your garage construction is crucial for ensuring durability, cost-effectiveness, and ease of maintenance. While some materials are standard for new garage construction — for example, wood framing, shingles, and concrete slab foundations — the materials you install in your garage interior may require extra consideration.

Whether you choose drywall, plywood, or polyvinyl chloride (PVC) panels like Trusscore Wall&CeilingBoard for your wall cladding and medium density fiberboard (MDF) slatwall, MDF pegboard, or PVC-based Trusscore SlatWall for your on-the-wall storage is up to you. But first, consider these pros and cons.

Pros of Drywall Cons of Drywall
Affordability: Drywall is one of the most cost-effective materials for garage walls, making it a budget-friendly option for homeowners looking to finish their garage without spending too much. However, be sure to factor in the cost of additional materials needed to install drywall (including mud, tape, primer, and paint). Difficult to Install: Sheets of drywall are heavy, awkward to work with, and often require two people to install – especially on tricky ceiling installations. You also need to know how to mud, tape, prime, and paint if you’re planning on tackling the project yourself. Otherwise, you’ll have to hire expensive, specialized contractors to do the work for you.
Smooth Finish: Drywall provides a smooth, clean surface that can be easily painted or textured to match the rest of your home’s interior. This allows for a seamless transition between your garage and other living spaces, enhancing the overall aesthetic appeal. Easy to Damage: Drywall isn’t impact resistant, which means it’s incredibly easy to damage. In high traffic and humid areas, you’ll likely notice scuffs, holes, cracks, dents, screw pops, and tell-tale signs of water damage on your drywall over time. While it’s possible to repair drywall, expect it to be a costly, time-consuming, and messy process. And something you’ll have to do, over, and over, and over again.
Customization: Drywall is highly versatile when it comes to finishing options. You can easily paint, wallpaper, or add decorative elements to suit your personal taste and style. This allows you to create a functional and attractive garage space that complements your home’s overall design. Prone to Water Damage: A sheet of drywall is made from paper cladding and gypsum, which are both highly absorbent materials that make drywall extremely susceptible to water damage from water, moisture, condensation, and humidity. Water stains, discoloration, bubbling, peeling paint, sagging, bulging, and soft spots are all visible signs that drywall has water damage and, if left alone, mold can begin growing in as little as 24 to 48 hours.
Difficult to Clean: Since it’s so absorbent, you must be mindful not to overdo it with soap and water when cleaning painted drywall, as using too much water can damage the drywall. If you notice scuffs and stains on the surface of your wall that soap and water can’t fix, melamine sponges may work. However, some damage will be so stubborn it requires you to repair the drywall itself or paint over it and hope for the best.

Plywood or OSB

Plywood and Oriented Strand Board (OSB) are both engineered wood products commonly used in construction and DIY projects.

Pros of Plywood and OSB Cons of Plywood and OSB
Strength and Durability: Both plywood and OSB are relatively durable materials that can withstand the rigors of a garage environment. They are less prone to dents and damage from impacts compared to drywall, making them a resilient choice for walls that may be subject to bumps from tools or equipment. Appearance: Without additional finishing, plywood and OSB have a rough, utilitarian look that might not appeal to everyone. While they can be painted or stained, the natural texture and appearance may still not achieve the smooth, polished finish that drywall offers.
Moisture Resistance: While neither plywood nor OSB is entirely waterproof, they’re more resistant to moisture than traditional drywall and can handle occasional exposure to moisture when properly sealed and maintained. Prone to Insect Damage: Plywood and OSB are susceptible to insect damage, particularly from termites and carpenter ants. This vulnerability means that these materials may require additional treatments or preventative measures to protect against infestations.
Versatility: Plywood and OSB are versatile materials that can be painted, stained, or left unfinished, allowing homeowners to customize the appearance of their garage to suit their preferences. Weight: Plywood and OSB are heavier than drywall, which can make them more challenging to handle and install. This added weight may require additional labor or assistance during installation, increasing the overall time and effort needed to complete the project.
Easy Installation: Both plywood and OSB are relatively easy to install. They can be cut to size with standard woodworking tools and attached directly to wall studs or existing drywall using nails or screws. However, you’ll have to increase your installation timeline if you plan to paint or stain the boards.

Trusscore Wall&CeilingBoard

PVC panels like Trusscore Wall&CeilingBoard are made from rigid PVC (vinyl) sheets that are extruded into flat panels. They’re lightweight, durable, and resistant to moisture, making them an ideal choice for garage walls.

Pros of Trusscore Wall&CeilingBoard Cons of Trusscore Wall&CeilingBoard
Easy to Install: Pre-finished Trusscore Wall&CeilingBoard panels weigh 40% less than drywall and install four times fasterv. Panels come with a pre-punched screw flange and a tongue and groove interlocking system, making installation a breeze for DIYers and contractors alike. Equipped with a set of basic tools, you can plan to have Trusscore Wall&CeilingBoard installed in a single afternoon – no painting required. Limited Colors: Trusscore Wall&CeilingBoard is only available in white or gray, so homeowners who are looking to create a pop of color with slatwall won’t have many options. 
Durable: Trusscore wall and ceiling panels are scratch, dent, and damage resistant and are designed to outlive the buildings they're installed in. Combined with a unique internal truss design, you can be confident that Trusscore Wall&CeilingBoard will withstand anything you throw at it. Limited Finishes: Trusscore Wall&CeilingBoard is only available in one glossy finish regardless of color. However, this helps reflect all available lighting in a space, making small and dark spaces appear bigger and brighter.
Moisture Resistance: Made from PVC, Trusscore Wall&CeilingBoard panels are 100% water and moisture resistant — they shed water and install in a way that creates a water-resistant barrier. Unlike drywall, the panels won’t absorb airborne moisture, won’t degrade or deteriorate in wet or damp environments, and will never grow mold or mildew.
Easy to Clean: The smooth, non-porous surface of Trusscore Wall&CeilingBoard means panels clean with a simple wipe. For more stubborn scuffs or grime, you can feel confident using detergent, chemical cleaners, and even your pressure washer to keep your panels looking good as new.
SlatWall Integration: If you’re planning to add on-the-wall storage in your garage, Trusscore Wall&CeilingBoard is your best choice — the panels seamlessly integrate with Trusscore SlatWall, which can be installed as a track, section, half wall, or full wall, and can hold up to 75 pounds per square foot. 

MDF Slatwall and Pegboard

MDF slatwall and pegboard are engineered wood products made by breaking down hardwood or softwood residuals into wood fibers, combining them with wax and a resin binder, and forming panels by applying high temperature and pressure.

Pros of MDF Slatwall and Pegboard Cons of MDF Slatwall and Pegboard
Affordability: MDF slatwall and pegboard panels are typically more budget-friendly compared to other materials like solid wood or PVC. Durability: MDF is easy to damage and any damage is permanent — since it's not made of solid wood, MDF can't be sanded to hide dents or scratches.
Easy to Paint: MDF has a smooth surface that’s easy to paint, allowing creative homeowners to customize their storage area with any desired color or finish. Limited Load Capacity: Compared to some other materials like PVC slatwall, MDF can’t support as many pounds per square foot. Load MDF up with too many heavy items, and you might start to notice some sagging or bending. 
Accessory Availability: From specialized hooks for hanging tools to baskets for storing small items, there's a ton of accessories designed specifically for MDF slatwall and pegboard systems on the market. No Moisture Resistance: While the exterior of MDF has some water resistance, the interior wood fibers will swell, warp, delaminate, or grow mold if exposed to excessive moisture.
No Specialized Tools or Skills to Install: Installing MDF slatwall and pegboard typically requires basic tools that are commonly found in most households, such as a drill, screws, and a level. You won't need any specialized equipment or advanced carpentry skills to get the job done, making it accessible to DIYers of all experience levels. Difficult to Clean: MDF can only be cleaned with dish soap, warm water, and a damp soft cloth and must be thoroughly dried to prevent water damage.

Trusscore SlatWall

Also made from PVC, Trusscore SlatWall is an on-the-wall organization system that’s easy to install, built to last, and seamlessly integrates with Trusscore Wall&CeilingBoard to completely transform your space. 

Pros of Trusscore SlatWall Cons of Trusscore SlatWall
Easy to Install: Trusscore SlatWall is a pre-finished panel that is DIY-friendly – the panels easily snap together and can be installed on top of drywall or bare studs with just a few screws. Limited Colors: Like Trusscore Wall&CeilingBoard, Trusscore SlatWall is only available in white or gray, which can hinder homeowner creativity.
Durable: Trusscore SlatWall panels are scratch, dent, and damage resistant, so they’re built to withstand the rigors of everyday use in high-traffic areas like garages and workshops. Limited Finishes: Trusscore SlatWall is also only available in one glossy finish regardless of color. 
Moisture Resistance: Unlike MDF panels, Trusscore SlatWall is 100% resistant to moisture and water and will never grow mold or mildew, making it ideal for use in damp or humid environments like garages,
Easy to Clean: Trusscore SlatWall panels are easy to clean with soap and water or regular household cleaners, making maintenance a breeze. Plus, the smooth surface resists dirt and grime buildup, keeping the panels looking fresh with minimal effort.
Wallboard Integration: When you install Trusscore SlatWall as a track, section, or half wall, you can easily integrate it with Trusscore Wall&CeilingBoard to create a fully finished, durable, and moisture resistant wall.  
High Load Capacity: Trusscore SlatWall supports up to 75 pounds per square foot, allowing you to store everything from bicycles to laundry detergent to power tools on the wall.  
Non-Proprietary Design: Trusscore SlatWall has a non-proprietary design and is compatible with most slatwall accessories on the market, including from Uline, Econoco, MasterCraft, and HandiSOLUTIONS.  

Each material offers unique benefits and drawbacks, so it’s essential to consider what’s most important for your garage in terms of durability, cost, and maintenance. By choosing the right combination of materials, you can ensure your garage is both functional and aesthetically pleasing.

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Insulation and Ventilation for Your Garage

Proper insulation and ventilation in your garage are essential for maintaining a comfortable environment, protecting stored items, and ensuring energy efficiency. Insulation helps to regulate temperature, keeping the garage warm in the winter and cool in the summer, while ventilation prevents moisture buildup, reducing the risk of mold and mildew.

  • Insulation Materials: There are several types of insulation materials to consider for your garage:
    • Fiberglass: Commonly used and cost-effective, fiberglass insulation is easy to install and provides good thermal resistance.
    • Spray Foam: This insulation offers excellent coverage and air sealing, making it highly effective but more expensive than fiberglass.
    • Rigid Foam: Rigid foam boards provide high insulating value and are ideal for walls, floors, and ceilings.
    • Cellulose: Made from recycled materials, cellulose insulation is an eco-friendly option that offers good thermal performance and soundproofing.
  • Ventilation Options: Proper ventilation ensures that air circulates effectively, preventing humidity and stale air buildup:
    • Exhaust Fans: These fans help to remove hot air and moisture, maintaining a comfortable environment.
    • Vents: Installing soffit or ridge vents allows for natural airflow, which helps regulate temperature and moisture levels.
    • Windows: Adding windows can improve natural ventilation and provide additional lighting.

Electrical and Plumbing Considerations for Your Garage

Addressing electrical and plumbing needs in your garage is crucial for safety and functionality, especially if you plan to use the space for more than just parking vehicles.

  • Electrical Wiring:
    • Lighting: Adequate lighting is essential for safety and usability. Consider installing overhead lights, task lighting for work areas, and motion-sensor lights for convenience.
    • Outlets: Plan for sufficient electrical outlets along the walls and near workbenches. Ground-fault circuit interrupter (GFCI) outlets are recommended for safety, especially in areas prone to moisture.
    • Charging Stations: If you have or plan to buy an electric vehicle, installing a dedicated charging station with the appropriate voltage is essential. Consult a licensed electrician to ensure proper installation and compliance with local codes.
  • Plumbing Needs:
    • Workshop or Utility Sink: Installing a sink can be highly useful for cleaning tools, washing hands, or handling messy projects. Ensure the plumbing is correctly installed to avoid leaks and provide adequate drainage.
    • Water Supply Lines: If you plan to include a sink, you’ll need hot and cold-water supply lines, which may require running new plumbing from your home’s main water supply.
    • Drainage: Proper drainage is necessary to handle wastewater. Ensure the garage has a floor drain or connect the sink to your home's drainage system.

Security Features for Your Garage

Ensuring the security of your garage is vital to protect your property and enhance the overall safety of your home. Several security features can help achieve this:

  • Strong Doors and Locks: Invest in a sturdy garage door with a reliable locking mechanism. Consider additional deadbolts for pedestrian doors.
  • Security Cameras: Installing cameras around your garage and connecting them to your home security system can deter burglars and provide peace of mind.
  • Alarm Systems: A garage-specific alarm system that integrates with your home’s security system can alert you to unauthorized access.
  • Motion-Sensor Lighting: Exterior motion-sensor lights can deter potential intruders by illuminating the area around your garage when movement is detected.
  • Window Security: If your garage has windows, reinforce them with security bars or shatter-resistant film to prevent break-ins.

Your Garage's Impact on Property Value

Adding a garage to your home can significantly enhance its resale value and attractiveness to potential buyers. Here’s how:

  • Resale Value: A well-constructed garage can increase your home’s market value by providing additional functional space and improving curb appeal. Homes with garages often sell for higher prices compared to those without.
  • Buyer Appeal: Buyers typically look for garages that offer ample space for vehicles and storage, as well as additional features like workshops or lofts. A well-designed garage can make your property more appealing by offering flexibility and added utility.
  • Key Features: To make your property more attractive, focus on features that buyers value, such as:
    • Adequate Space: Ensure the garage is spacious enough to accommodate multiple vehicles and provide extra storage.
    • Modern Conveniences: Installing features like electric vehicle charging stations, proper insulation, and good lighting can appeal to tech-savvy buyers.
    • Aesthetics and Functionality: A garage that complements your home’s design and offers practical functionality can be a strong selling point.

By investing in a high-quality garage, you not only enhance your current living experience but also add value to your property, making it more desirable to future buyers.


Adding a garage to your house is a substantial project with many considerations. By carefully evaluating your needs, budget, and local regulations, you can ensure a successful and rewarding addition to your home.