Metal Garage Buildings

Secure, dependable garaging

Metal garages offer secure, durable, and economical vehicle storage with low maintenance requirements. All our metal garage buildings are custom-made to YOUR specs for size, roof style, number of doors, and clearances. Steel frame garages are suitable for both detached residential & commercial garaging applications.

3 Car Metal Garage Building
Three Car Metal Garage Building
BuildingsGuide ©
Made in USA
Solid Steel
30 Yr Warranty
Custom Engineered

What is a Metal Garage Kit?

Prefab metal garage kits come with heavy-gauge steel I-beam framing and commercial-grade metal siding and roofing panels. All kit packages are tailored to your specifications and engineered to meet local building codes. These kits are not temporary, flimsy tubular structures - they are permanent, durable buildings made from American steel designed to last and add value to your property.

Installed Garage Cost Range $25 - $50 per square foot

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Why Choose a Metal Garage?

American-made, I-Beam steel framing, custom-engineered in factories across North America.

Metal buildings are incredibly durable, with near-zero maintenance requirements. Our garage suppliers offer warranties on framing, siding, and roofing for up to 30 years.

Maximize your floor plan with 100% usable, column-free space. The most popular sizes can accommodate multiple vehicles and space for storage and projects. Larger models can add office space, a bathroom, or even a mezzanine loft storage level. No need to hire an architect. Our suppliers work with you to ensure you get the metal garage building you want.

Detached custom metal garages are ‘future proofed’ with easily expandable end walls for future growth. Precision engineering ensures your building goes together without a hitch the first time. The easy bolt-together installation enables fast deployment for both DIY and professional builds.

Unlike tubular carport-style garages, solid steel garages add value to your property and are engineered to meet your local codes for wind, snow, and seismic loads.

Solid, secure, low-maintenance garaging

  • Highly durable & long lasting
  • Fast, simple construction… often DIY
  • Custom manufactured
  • Clear span, 100% usable floor space
  • Near-zero maintenance
  • Cost effective compared to wood
  • Engineered to meet your local codes
  • Customize to match surrounding structures
  • Easily expanded for future growth
  • Adds value to your property
  • Improved fire resistance

What's Included in a Garage Kit?

Steel garages start as a base building kit package. You then decide how you want to customize the standard steel garage kit for your particular needs and desired appearance. The wide range of options includes dimensions, roof style and pitch, exterior finishes, color, door and window sizes, and types. With so many options for customization, it's easy to create a metal garage building that perfectly meets your storage or workshop needs, while also complementing the look and feel of your property.

  • What's Included:

    Metal Garage Packages Include:

    • 1:12 roof pitch (2:12-6:12 available)
    • Tapered steel I-Beams (primary framing)
    • All roof purlins & wall girts (secondary framing)
    • Two framed door openings (add extra if required)
    • Engineer stamped erection & anchor bolt plans
    • Pre-painted 26-gauge metal roof & wall panels *
    • All nuts, bolts, clips and fasteners
    • Detailed construction manual
    • Pre-drilled, numbered parts
    • Complete trim package
    • Sealants & flashing
    • Structural warranty (30-50 yrs)*
    • Paint warranty (30-40yrs)*

    *Vary by supplier

    I-Beam framed prefabricated metal garage kits
    I-Beam framed prefabricated metal garage kits
  • Features

    Key Features:

    American-made, I-Beam steel framing, custom-engineered in factories across North America.

    • Customizable to suit any application
    • Designed to meet your local building codes
    • Certified to 160 mph wind & 110 (psf) snow load
    • Precision engineering for a weathertight structure
    • Red-oxide primer baked onto all components
    • Low maintenance, with 30+ year warranties
    • 100% usable, column-free space
    • Easily expanded for future growth *
    • Fast construction times
    • DIY friendly

    * if future expansion is a possible requirement, be sure to specify 'expandable end walls' when placing your order.

    Red iron building I-beam framing
    Red iron building I-beam framing
  • Specifications

    Steel Garage Building Specs:

    • Wind load: 70-160 mph
    • Ground snow load: 10-110 (psf)
    • Available roof pitches: 1/2, 1, 2, 3, 4, 5 and 6:12
    • Roof styles: Gable, single slope, lean-to (LT)
    • Standard bay spacing: 20', 25' and 30'
    • Standard widths: 30' to 200' (clear span)
    • Standard heights: 10' to 40' (eave height)
    • Primary frame: I-beams (min.yield 42k psi) *
    • Second frame: purlins/girts (min.yield 55k psi) *
    • Wall & roof panels: 24 or 26 gauge metal panels

    * vary by supplier

    3D Garage Design
    3D Garage Design
  • Exclusions

    Items not included:

    • Delivery
    • Permits
    • Foundation
    • Construction
    • Insulation
    • Interior finishing

    Pouring the concrete foundation for a steel garage
    Pouring the concrete foundation for a steel garage

Popular Garage Sizes & Designs

30x40 three car garage with two overhead doors

30x40 Garage

A 30x40 metal garage is a professional and versatile garaging solution providing 1,200 sq ft of clear-span space. It can be designed as a two-car garage with 700 sq ft of workshop space, a three-car garage with 500 sq ft of storage space, or even configured to securely shelter up to eight vehicles - perfect for an ever-growing car collection. Explore our collection of garage designs, floor plans, and garage packages.

Designs & Layouts
30x50 drive through garage design

30x50 Garage

With a 30' x 50' garage, you get 1,500 sq ft of usable, clear-span space that can be designed as a comfortable 4 car garage with 500 sq ft of bonus space or adjust the layout for use as a drive through garage for boats and trailers. Or, for longer-term purposes, you can securely store up to nine vehicles. View our collection of custom garage buildings.

Designs & Layouts
40x60 garage with lean to in forrest green and light grey

40x60 Garage (6 to 12 cars)

A 40x60 garage is one of the most versatile garaging solutions available if you need an oversized garage. At 2,400 square feet, this garage makes a great 6-car garage with an additional 900 sq ft of storage or workspace. Or, for long-term vehicle storage, you can house a maximum of twelve regular-sized vehicles. Also, consider adding a lean-to carport for additional covered parking space or partition off part of the interior and add office space and a bathroom. See our sample designs and layouts.

Designs & Layouts

The Construction Process

Red iron building - build process

How to Build a Metal Garage

  • Step 1: Planning

    Careful planning is vital to ensure you get the right metal garage building at the right price. Try to consider what you will use your building for now and further into the future.

    What Size Garage Do You Need?

    Prefab metal garages are available in widths from 30’ to 100’ (in increments of 10’) with unlimited lengths. Our most popular garage sizes are 30x40 garages (3-8 cars) or 30x50 (4-10 cars), and 40x60 (6-15 cars). The overall garage dimensions will be governed by the number of vehicles you intend to store. You will need about 240 square feet for cars and 300 square feet for medium-sized trucks. This allows for two feet of clearance on either side of the vehicle and three feet down the length (for doors to open fully). If the garage is to be used for long-term vehicle storage, you should allow 150 square feet for cars and 200 square feet for trucks.

    Creating a metal garage plan can be a useful tool in this planning process, allowing you to accurately visualize the space and ensure that it meets your current and future needs. Visualize your layout with our garage floor plan design tool, or view our sample garage floor plans.

    What Height Garage Do You Need?

    The eave height of your building will be dictated by what type of vehicles you intend to store in the garage. Typical eave heights include 10’ or 12’ for cars and trucks and 14’-18’ for oversized vehicles, trailers, and boats. Steel garages require a 2’ clearance above the door opening and the building's eave height. So, if you need a 10’ overhead door, choose a 12’ eave height (the most common option). A garage with a 12’ eave height will also allow you to use a car lift inside (if required).

    Other garage size considerations include:

    • How much storage or workshop space will you require?
    • Will you require a half bathroom? (if so, allow approx. 25 sq ft)
    • Will you need office space? (if so, allow approx. 80-120 sq ft)
    • Will you require space for garden machinery, an ATV, or a boat?
    • Will you need a second-story loft apartment? (If so, choose a height of 16’ to 20’)

    TIP: Choose as large a garage as your budget and space will allow. The #1 complaint we hear is, ‘I wish I had opted for a slightly larger size.’

    How Many Framed Openings Will You Need?

    Framed openings are required for all door openings. Typically one framed opening is provided for a personnel door and one for a typical garage door. You will need to decide how many additional framed openings you will require for parking bays and what size these need to be. Each of these will add to the overall cost of your prefab garage, as additional steel is required for each framed opening.

    Is a Building Permit Required For a New Garage?

    A building permit will be required, but some rural and farm properties are exempt. Check with your local municipality or county building department once you have decided on a site and size for your building. You won’t be able to apply for building and foundation permits until you’ve ordered your garage and received engineering drawings from your chosen supplier.

    Our garage suppliers provide metal buildings that are engineered to meet or exceed local codes throughout the United States and Canada for wind, snow, and seismic conditions.

    For more details, see our article on planning a metal building project.

    Will You Require financing?

    Several options are available for financing steel garage kits; see our guide to financing a metal building for more details. If financing is required, identify suitable lenders at this stage. You will not be able to make the loan application until you have finalized all your building details and are at the pre-construction stage.

  • Step 2: Design

    Choose a Garage Roof Style and Pitch

    The most popular roof style for garages is the gable roof, with a pitch of 1:12 to 4:12. Single slope (or shed roof) profiles are also popular if you are looking for a more modern garage design; these typically have a pitch of either 1:12 or 2:12.

    For more, see our guide to metal roofing.

    Pick Custom Garage Options

    Get precisely the garage you need  - all buildings are custom designed to your exact specifications.

    A standard building package is all that most customers require, but a wide range of customization options are available that allow you to configure and style the garage to meet YOUR requirements. Some of the more popular options include:

    Color options: Make a statement or complement your home by choosing from over twenty colors for roofing, siding, trim, wainscot and doors.

    Door options: Choose from either sectional or roll-up overhead garage doors, and pick sizes that will accommodate your vehicles.

    Siding options: Metal garages come standard with PBR metal siding, but you can replace this with a selection of other materials, including Hardie board, stucco, or faux stone panels.

    Structural options: Consider adding a lean-to for additional covered parking or add a mezzanine level for second-level storage, office space, rec room, or living quarters.

    No need to hire an architect. Our building suppliers will assist you in designing your ideal prefab garage and advise you on options to best suit your needs in terms of aesthetics and functionality.

    For an in-depth look at each option, read our guide to customizing a metal garage.


    Looking for inspiration? See our collection of garage design ideas.

  • Step 3: Ordering

    Once you have a reasonable idea of your garage's size, style, and design, the next step is to get quotes for the garage kit. We can help with this - tell us about your project, and we will match you with FOUR reputable building suppliers who will provide competitive quotes for your metal garage kit. Request competing quotes here.

    Once you have chosen a supplier to work with, you will place a building deposit (typically 20-30%) and sign a contract before the factory can begin engineering your custom garage. You will then receive (typically in 2-3 weeks) a set of building and foundation (anchor bolt) plans stamped by an engineer licensed for your state. Building plans are typically included, but some suppliers charge extra for foundation plans. So be sure to verify this before you place your order.

    Armed with all the relevant plans, you can now get quotes from local subcontractors or a general contractor to facilitate the construction of your garage. You will also be able to:

    • approach your local building department and begin the permitting process and
    • talk to lenders if you require financing.

  • Step 4: Pre-construction

    Site Preparation

    Thorough site preparation is critical. You’ll need to consider:

    • Room for setbacks.
    • Location of current utilities and access routes.
    • The ability of the ground to support the building.
    • Any easements on the property.

    Preparation will include:

    • Surveying.
    • Site clearing.
    • Soil perc test and analysis.
    • Preparation of a map of the area, including access.
    • Possible excavation and addition of fill.
    • The building area must be graded (leveled). Correct compacting of the soil is critical.

    Run Services To The Job Site

    A professional must identify existing power, water, and gas lines in the construction area. Then, a licensed contractor must pull the permits to have the gas, water, and power lines run from your home’s lines.
    If you are using your well to supply this building, check that the current pump and pressure tank can handle the new demand. Read more about construction site preparation.

    Pour The Garage Foundation

    Metal buildings require a slab-on-grade foundation. The foundation and anchor bolts are not included in the price, so allow for $4-$8 per square foot for this. Foundation plans designed by a licensed structural engineer will be required for permitting purposes and to verify code requirements are met.

    Unless you have extensive experience in installing foundations, we highly recommend that you have the foundation poured by professionals. A 4” slab foundation will work for most garages, but a 6” foundation will be required if you intend to store heavy equipment or if a car lift is going to be installed. Consider adding in-floor heating at this stage. Also, consider installing a drain for wastewater (either a square bell trap drain or a trench drain). Read our in-depth guide to foundations.

  • Step 5: Construction

    Prep For Delivery

    Metal buildings are typically ready for delivery 4-16 weeks after you place your order.
    Ensure you have lifting equipment (backhoe, forklift, etc.) at your job site to offload the framing, siding, and component packages and a place to store these before construction. The final balance of payment will also typically be due upon delivery. Read more on what to expect on delivery day.

    Construction: Three options

    DIY build: You complete all the work yourself… pour the foundation, erect the garage structure, install insulation and complete any other interior finishing. All metal garage kits are designed for simple DIY construction and include all primary and secondary framing, siding, roof sheeting, nuts, bolts, and a set of comprehensive instructions.

    For garages under 3,000 square feet, approximately 50% of buyers choose to build their own garages. With some construction experience and plenty of planning, a DIY build can save you 20-30% on the total metal garage cost.

    Self Build: You act as the project's general contractor (GC) and hire and manage the various subcontractors to complete the garage build. This option can save you 10-20% on the general contractor fees.

    General Contractor build: If you decide to go with a General Contractor (GC) for your project, they will be responsible for hiring and managing all the subcontractors. This option is typically the quickest and smoothest way to complete your build, but it is also the most expensive. GCs typically charge 10-20% of the project cost. However, you will benefit from the experience of the GC and the ideas they bring to the project. You may also benefit from a quicker permit approval process, as many GCs have relationships with local building departments.

    See our guide to metal building construction for more details.

  • Step 6: Finishing

    Wiring Plumbing and Flooring

    When you buy a steel building from one of our suppliers, you buy just the metal buildings shell, including all framing, roof, walls, and doors. You will be required to engage local contractors to take care of the wiring, lighting, heating, plumbing, flooring, and internal framing (if required).

    Install Insulation

    Insulating your garage will provide resistance to cooling in winter and overheating in summer. It also helps prevent condensation and provides a good sound barrier. A little extra expenditure on insulation will yield major savings in energy costs. Most garage owners opt for either fiberglass blanket or spray foam insulation for improved energy efficiency. This can be purchased from your building supplier or sourced locally. Read our guide to steel building insulation for details of each option.

    Interior Framing and Finishing

    Once the insulation has been installed, you can frame the interior of the garage if you require, say, an office or bathroom. Typically, the framing will be 2x4 lumber, but it is also possible to use steel framing for this. Again, hire a local framing company for this stage of the build.

    Walkthrough and Final Inspection

    Small problems now can turn into bigger problems later. Therefore, formal inspections should be carried out throughout construction and on completion of the build.
    A final inspection will be required at this stage to complete your permit process.
    The building permit process is complete once you've passed your final inspection. After that, the building inspector will usually provide you with a certificate of occupancy, confirming that your project was completed in accordance with local building codes.

    See our page on steel building interiors for additional details.

How Much Does it Cost to Build a Metal Garage?

The average cost to build a metal garage ranges from $25 to $50 per square foot. A 2-car garage starts at $26,100, a 3-car garage at $34,800, and a 4-car garage at $43,500. Costs vary based on your location, the number and size of overhead doors, and the level of interior finish required.

Let us help you find the best garages for sale. Tell us about your project , and we'll match you with four local suppliers who will email you written quotes for your new garage.

Alternatively, see our metal building prices page for additional cost data.

Item Sq Ft Cost
Garage kit package $15 - $25
Foundation $5 - $10
Construction $5 - $10
Interior Finishing $0 - $10+
Av. Turnkey Cost $37 / Sq Ft


Common Questions

  • Can I add a loft to my garage?

    Yes, you can add aloft by framing the garage's interior and adding a mezzanine level. This can be constructed using regular lumber or steel stud framing. Alternatively, you can buy pre-engineered mezzanine kits to create a second-level loft space.

  • What is a standard garage height?

    With steel buildings, the height is measured at the eave. As a rule of thumb, you will need 2 feet above your highest opening. So for standard cars and trucks, you will need an 8-foot garage door plus 2 feet to give you an eave height of 10 feet. For oversized vehicles, you will most likely need 12-14 feet.

  • Do steel garages need a foundation?

    Yes, you will need a foundation for a metal garage. This will either be a 4 inch slab for regular vehicles or a 6 inch slab for heavy machinery or if a car lift is going to be used. If you have the precise location of the car lift, you can have this portion at 6 inch with the remainder at 4 inch which will save you a significant amount on concrete costs.

Why Choose Us?

BuildingsGuide simplifies the process of finding reputable suppliers of prefab metal buildings, allowing you to select the ideal vendor for your needs and budget.

Since 2004, over 200K buyers have saved an average of 28% on their project with our multiple quote service.

We've got you covered in the United States & Canada

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Let us help you find the ideal metal building for sale at the best price.

  • Tell us about your project
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