Unify Your Space: Convert Two Garage Doors to One

Joan Aug 08, 2026

Got two garage doors but wishing for just one? You're not alone. Combining two garage doors into one is a practical solution to create more space or accommodate larger vehicles. But where do you start? This guide will walk you through the process, explaining tools needed, steps involved, and some smart design ideas to ensure you're left with a functional and aesthetic garage. Let's dive in.

18+ Stylish Garage Door Conversion Ideas
18+ Stylish Garage Door Conversion Ideas

Before embarking on this project, it's crucial to understand that turning two garage doors into one involves several steps, from structural considerations to designing the new door system. This process requires basic DIY skills and the right tools. But don't worry, with careful planning and meticulous execution, you'll be enjoying your new, spacious garage in no time.

DIY Garage Door Replacement
DIY Garage Door Replacement

Assessing the Space and Structural Integrity

Before you start any work, it's vital to assess the space you're working with. Measure the garage opening to ensure the new door will fit comfortably. Also, consider the structural integrity of the garage wall. If it's not strong enough to support the weight of a single, larger door, you might need to beef it up.

Visit our website to create your own WalkThru Garage Door
Visit our website to create your own WalkThru Garage Door

It's also crucial to factor in the type of garage door you want. Overhead sectional doors are typically easier to install and operate, while rolling steel doors take up less headroom. Make sure to choose a door that fits your space and needs.

Preparation: Tools and Materials Needed

Double garage door conversion with SWS SeceuroGlide LT insulated roller garage door in black
Double garage door conversion with SWS SeceuroGlide LT insulated roller garage door in black

Now that you've assessed your space and chosen your door, it's time to gather your tools and materials. You'll need a tape measure, level, circular saw, drill, sledgehammer,utility knife, concrete screws, framing lumber, and, of course, your new garage door.

Safety is paramount when undertaking any DIY project. Make sure to wear gloves, safety glasses, and hearing protection. Also, be aware of where your breakers are located in case you need to turn off power to the garage while working.

Demolishing the Existing Doors

WalkThru Garage Doors
WalkThru Garage Doors

With everything ready, it's time to start demolishing the existing garage doors. Begin by disconnecting the doors from their openers. Then, using a sledgehammer, slowly knock out the door blocks from the header above the opening.

Once the blocks are removed, disconnect the door frames from the garage wall using a drill and concrete screws. Be careful not to damage the existing garage walls. Now, remove the door frames and dispose of them appropriately.

Installing the New Garage Door

30 Unique Garage Door Conversion Ideas for New Rooms - We Love Home Blog
30 Unique Garage Door Conversion Ideas for New Rooms - We Love Home Blog

With the old doors removed, it's time to install the new garage door. Start by measuring the width and height of the new opening. Cut two new header studs to fit and secure them in place using a drill and concrete screws.

Next, install the door's header bracket according to the manufacturer's instructions. This usually involves attaching it to the header studs and leveling it. Once secure, attach the vertical tracks to the sides of the garage opening, making sure they're perfectly plumb.

How To Replace Your Garage Door With French Doors
How To Replace Your Garage Door With French Doors
How To Replace Your Garage Door With French Doors
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a garage with a door and window that is boarded up
a garage with a door and window that is boarded up
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two white double doors on the side of a brick building with wood planks and windows
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an open blue door leading to a kitchen and living room in a white brick building
WalkThru Garage Doors
WalkThru Garage Doors
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a brick house with double doors and windows
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an open door leading to a garage with a truck parked in the back yard behind it

Installing the Door's Ladder and Screws

The ladder is the part of your garage door system that holds the door loops. Attach it to the wall according to the manufacturer's instructions, using concrete screws for extra sturdiness.

Next, install the door's lifting screws. These are usually inserted from the top of the door and screwed into the header bracket. Make sure they're evenly spaced and secure.

Hanging and Balancing the Garage Door

With the ladder and screws in place, it's time to hang the garage door. This involves lifting the door onto the ladder and securing it with screws. Make sure the door is level and the loops slide smoothly up and down the screws.

To balance the door, you may need to adjust the tension springs. This can be a dangerous task and should be done with extreme caution. Adjusting the springs requires special tools and knowledge of garage door mechanics. If you're unsure, it's best to call a professional.

Congratulations! You've successfully turned two garage doors into one. That final step, testing the door's operation, is not just a rite of passage but also a smart safety check. Ensure the door opens and closes smoothly, and that the automatic opener, if you've installed one, works perfectly. Regular maintenance will keep your new garage door running smoothly for years to come.