Garage Door Cost by Size
Price a door from its dimensions: width × height gives the square footage, times your $/sq ft rate, plus installation — single 8×7 or 9×7 up to a double 16×7 or 16×8.
Calculator
A 16 × 7 ft door is 112 sq ft; at $12.00/sq ft plus $500.00 install that's about $1,844.00. A single door is usually 8×7 or 9×7; a double is 16×7 or 16×8. Enter your quoted rate — a planning estimate, not a bid.
Garage doors are quoted by size at least as often as by material, because the panel area is the raw cost driver: a 16-foot double has almost twice the square footage of a 9-foot single, so even at an identical per-square-foot rate it costs far more. This tool turns dimensions into a price — enter the width, the height, your quoted $/sq ft and the installation, and it returns the installed total with the square footage broken out.
The default is a 16×7 double, the most common two-car size in the US, but the calculator handles any size: single 8×7 and 9×7 doors, taller 8-foot doors for trucks and vans, and non-standard widths. The rate is yours, so the answer tracks your market rather than a stale national figure.
Formula
Multiply the door’s footprint by your per-square-foot price and add installation:
total = width_ft × height_ft × price_per_sqft + install
Square-foot pricing is a quick way to normalize doors of different sizes to one rate. A standard single door is 8×7 or 9×7; a two-car double is 16×7 or 16×8. Because a double is much larger in area, its total is well above a single even at the same $/sq ft.
Worked example
A double door at 16 ft × 7 ft = 112 sq ft, priced at $12/sq ft with $500 installation:
112 × 12 + 500 = 1,344 + 500 = $1,844
So “garage door cost for a 16×7” at this rate is about $1,844 installed. Drop to a 9×7 single (63 sq ft) at the same rate and it falls to roughly $1,256 — the size, not the material, drives most of the gap here.
Standard sizes and square-foot pricing
Standard US sizes. Single-car doors are almost always 8×7 or 9×7 (56–63 sq ft); two-car doors are 16×7 or 16×8 (112–128 sq ft). An 8-foot-tall door adds clearance for a lifted truck, van or small RV. Non-standard sizes exist but cost more per square foot because they are semi-custom. The full list is on standard garage door sizes.
Per-square-foot pricing is a shortcut. It is handy for comparing doors of different sizes at a glance, but real quotes are not purely linear: openers, insulation, windows and decorative overlays are added on top, and very small or very large doors carry fixed costs that skew the rate. Use the square-foot figure to get in the right ballpark, then itemize the extras on the installation cost tool.
Single or double? If you are weighing one wide double against two singles, or a single against a double for a two-car bay, the single-vs-double compare tool puts the two totals side by side and shows the difference. And once you know the size, the same dimensions feed the weight estimator and the rough-opening calculator. All figures here are planning estimates from your entered rate — confirm with written quotes.
Frequently asked questions
How much does a 16x7 garage door cost?
At $12/sq ft with $500 installation, a 16×7 double (112 sq ft) comes to about $1,844 in the worked example. Rates vary by material and market, and openers or insulation add to it — enter your own $/sq ft for a local figure.
What are the standard garage door sizes?
Single-car doors are typically 8×7 or 9×7; two-car doors are 16×7 or 16×8. Eight-foot-tall versions add clearance for trucks and vans. See the full reference on standard garage door sizes.
Is a double door cheaper than two single doors?
Usually yes, because one 16-foot door needs one opener, one set of tracks and one install visit instead of two. But two singles give you independent doors and a center post for structure. Compare the totals on the single-vs-double tool.
How do I measure my garage door size?
Measure the door opening width and height in feet at its widest and tallest points, not the door panel. For the framing and clearances around that opening, use the rough-opening & framing calculator.
Why is per-square-foot pricing only an estimate?
Because real quotes add openers, insulation, windows and trim on top, and fixed costs skew very small or very large doors. Treat the square-foot total as a ballpark, then itemize extras on the installation calculator.