Single vs Double Garage Door Cost in East Tennessee

One of the first budgeting questions Greeneville homeowners ask is simple: how much more does a double garage door cost than a single, and if I have a two-car garage, is one wide door or two separate doors the better buy? The answer affects both your upfront cost and how the front of your home looks. Here are real 2026 price ranges for the East Tennessee area and a clear way to think about the choice.

The Short Version

A single-car door covers roughly a 8 to 10 foot opening. A double-car door covers a 16 to 18 foot opening in one piece. As a 2026 estimate for the Greeneville area:

• Single-car door, installed: about 900 to 1,600 dollars for standard steel; more for insulated, wood, or full-view glass.
• Double-car door, installed: about 1,400 to 3,000 dollars for insulated steel; premium materials push higher.

A double door costs more than a single, but not double — because much of the installation labor, the opener, and the setup is shared across one opening. That is the key insight for your budget.

What Drives the Price

The door size is just the starting point. Five factors move the final number.

• Material. Steel is the value choice; wood and full-view aluminum-glass cost significantly more. Our materials comparison lays out the trade-offs.
• Insulation. An insulated door with a foam core costs more than a single-layer door but pays back in comfort on an attached garage. See garage door R-value explained.
• Windows and hardware. Window sections and decorative carriage hardware add to the price while boosting curb appeal.
• Opener. A new door is the natural time to add or upgrade an opener. Budget separately using our opener installation cost guide.
• Old-door removal and any track or opening repairs if the framing has shifted.

Two Singles vs One Double

If you have a two-car garage, you face a real design choice: one wide double door, or two separate single doors side by side. Each has trade-offs.

One double door

• Usually the lower total cost — one door, one track set, one opener.
• Clean, uninterrupted look popular on modern and traditional homes alike.
• Easier to pull a large vehicle or trailer through the wide opening.
• If it fails, the whole garage is closed off until it is fixed.

Two single doors

• Higher cost — two doors, two openers (or one with extra hardware), more installation.
• A classic, symmetrical carriage-house look with a center post between them that many farmhouse and craftsman homes wear beautifully.
• Redundancy — if one door or opener fails, you can still use the other bay.
• The center post can make maneuvering a wide vehicle slightly tighter.

For pure budget, one double door usually wins. For curb appeal on a traditional home, two singles can be worth the premium. Our curb appeal and resale guide covers how each reads from the street.

A Realistic Sample Budget

For a typical two-car attached garage in Greene County choosing a mid-range insulated steel double door:

• Door and installation: roughly 1,600 to 2,600 dollars.
• New smart belt-drive opener with battery backup: a few hundred dollars more.
• Optional windows and decorative hardware: a modest add that lifts curb appeal.

That puts a comfortable, quiet, insulated setup in the low-to-mid thousands installed. These are ranges, not firm quotes — your exact opening size, material, and options set the real number. For the full picture, see our garage door replacement cost guide for Greeneville and new door installation cost for East Tennessee.

Is It Worth It?

Garage door replacement is consistently one of the highest-return exterior projects at resale, frequently recovering 90 percent or more of its cost — and an insulated door pays you back daily in comfort and lower HVAC strain. Whether you choose one double or two singles, a new door is rarely money wasted.

Repair First or Replace?

If your current door is only a few years old and one part failed, a repair may be all you need. If it is older and you are fixing it repeatedly, replacement is the smarter money. Our guide on repairing vs replacing a garage door works through that decision.

Get an Exact Number for Your Home

The only way to get a firm price is to measure your opening and confirm your material and opener choices. That is exactly what a free assessment does — no guesswork, no pressure.

Call (423) 262-3147 or request a free quote. Learn about our garage door installation service, and see the areas we serve, including Greeneville. We install for Greeneville, Chuckey, and all of Greene County.