Single width garage doors	Doors come in a variety of styles and many sizes. Those shown are chosen to compliment traditional home styles. They work well for a country home, barn, workshop or carriage house. Single width garage bay doors are typically 9'-0" wide but may be as small as 8' or wider than 9' when required. Typical suburban garages feature 7' high doors but we recommend 8' for pickup trucks, vans and today's popular SUVs. For special equipment, Boats, and RVs you should obtain actual dimensions. In addition to the height required for the doors, you should plan for an additional 1'-6" from the top of the door to the underside of the garage ceiling, to accommodate door tracks and electric openers. Doors that open out are also available, see listings below for good sources.
Check with your local building supply company for specific style available to you, see links below.
Garage doors come in insulated and uninstalled.  Insulated doors cost about 10% more but are a good choice for an attached garage or a garage that's used as a workshop or might some day be heated.

Here are some links to our favorite garage and barn door manufacturers:

Real Carriage Door Company, Inc 9808 44th Ave NW Suite #102 Gig Harbor, WA 98332

We handcraft real, swing-out carriage doors built to customer’s dimensions. Why buy "carriage-style" roll-ups when you can have Real Carriage Doors? Our artisans build each door by hand out of the finest clear grain Douglas Fir. Purists love the solid wood construction of our doors. You will not find doors of this caliber anywhere else.  Real Carriage Doors say to those who see your home that you value that which is real… that which has character.  Join the renaissance! http://www.realcarriagedoors.com./ Contact: info@realcarriagedoors.com (800) 694-5977

Access Garage Door-Custom Wood Garage Doors Suppliers of architecturally correct garage doors, gates and ornamental hardware	http://www.accessgaragedoor.com/
Amarr  Classica Collection for Carriage House styles	http://www.amarr.com
Architectural Garage Door Mfg., Inc. (AGDM) Residential and commercial wood overhead doors of yester year.	http://www.woodgaragedoor.com.
Artisan Door Works	http://www.artisandoorworks.com
Clingerman Builders-Custom Wood Garage Doors Located in PA, we build custom wood garage doors for many dealers across the US.	http://www.clingermanbuilders.com
Evergreen Carriage Doors LLC Custom crafted side hinged carriage doors eliminate the overhead tracks, and provide a distinctive look with all-wood construction and optional automated action. Authentic carriage house detailing and hardware.	http://evergreencarriagedoors.com 1-800-654-0750
FIMBEL "The Garage Door Experts"  Merrimack, NH and Hampton, NH	http://www.fimbel.com
Garage Doors Inc. Wood garage doors you can customize.	http://www.garagedoorsinc.com/
International Door Assoc.	http://www.doors.org
Summit Garage Doors  Residential doors, very good "Design a Door" page.	http://www.summitgaragedoor.com/

Here are some more ideas:  Planning your attached garage.