"Converting Two Garage Doors into One"

Joan Aug 08, 2026

Ever found yourself in a situation where you have two garage doors, but you wish you could combine them into one? Whether you're looking to create a larger garage space, improve accessibility, or have a unique design in mind, turning two garage doors into one is a challenging yet rewarding DIY project. This comprehensive guide will walk you through the process, ensuring you understand the steps involved and have the necessary tools and knowledge for a successful outcome.

Garage door ideas 2026 double car black wooden garage style for bold curb appeal
Garage door ideas 2026 double car black wooden garage style for bold curb appeal

Before you begin, it's essential to assess your garage doors' condition and measure their sizes. It's also crucial to have a clear vision of your desired result. This article will focus on the most common scenarios: combining two single garage doors into one double-wide door or creating two separate doors with a shared header.

DIY Garage Door Replacement
DIY Garage Door Replacement

Combining Two Single Garage Doors into One Double-Wide Door

The first approach involves replacing your two single garage doors with one double-wide door. This method maximizes the available garage space and offers a clean, modern look.

Double-Door Garage Conversion - Extreme How To
Double-Door Garage Conversion - Extreme How To

Be aware that this process requires removing the existing doors, headers, and track systems. You'll need to install a new, wider header and track system that accommodates the double-wide door. This method also requires precise measurements and adjustments to ensure the new door fits perfectly and functions correctly.

Measuring and Preparing for the Double-Wide Door

DiY ประตูโรงรถเปิดขึ้น #t3b #diy #ประตูโรงรถ
DiY ประตูโรงรถเปิดขึ้น #t3b #diy #ประตูโรงรถ

Begin by measuring the width of both garage door openings combined. Subtract 3 inches from this total to account for the new header's width. This measurement should give you the width of the double-wide door you'll need to purchase.

Head to your local home improvement store and select a double-wide garage door that matches your desired dimensions. Make sure to choose a door with a track system that can be adapted to your garage's layout. In some cases, you may need to purchase additional parts or hire a professional to install a suitable track system.

Installing the New Header and Track System

Cost of converting into double garage - Page 1 - Homes, Gardens and DIY
Cost of converting into double garage - Page 1 - Homes, Gardens and DIY

Remove the existing headers and track systems from both garage door openings. Measure and cut a new header to fit the combined width of the two openings, minus 3 inches. Install this new header using appropriate fasteners and support structures.

Install the new track system according to the manufacturer's instructions. Ensure the tracks are properly aligned and secured to the garage's framing members. Test the new track system with the double-wide door to ensure it functions correctly and moves smoothly along the tracks.

Creating Two Separate Doors with a Shared Header

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

The second approach involves building two separate garage doors that share a common header. This method retains the accessibility of two individual doors while offering a stylish and unique look.

This project requires careful measurements, a solid understanding of basic carpentry skills, and the ability to work with frameless garage door systems. Keep in mind that creating two separate doors may limit the available garage space compared to a single double-wide door.

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Designing and Planning the Shared Header

Decide on the width of each garage door and the overall width of the shared header. Ensure that the combined width of the two doors and the header allows for a minimum of 3 inches of clearance on each side of the garage opening.

Create a sketch of your desired layout, including the dimensions of the header, doors, and any additional design elements. Transfer these measurements to the garage's framing members, marking the top and bottom edges of each garage door opening, as well as the location of the shared header.

Building and Installing the Frameless Garage Doors

Purchase or build frameless garage door panels that match the overall design of your home. These panels can be made from materials such as steel, aluminum, or wood composite, and can be customized with various textures, colors, and window options.

Cut the garage door panels to match the dimensions of your garage door openings. Install these panels onto the existing garage door hardware, ensuring they are properly aligned and secured. If necessary, you may need to purchase additional hardware or make adjustments to accommodate the new doors.

Finally, inspect your newly combined garage doors to ensure they function correctly and appear as desired. Test the doors' opening and closing mechanisms, and make any necessary adjustments or repairs. With your project complete, you'll enjoy a garage space that's more convenient, functional, and visually appealing than ever before. Consider hiring a professional to help with the measurements, installations, and adjustments to ensure a successful and safe outcome. Regular maintenance will keep your garage doors operating smoothly and looking great for years to come.