Standard garage door dimensions are 8 to 10 feet wide and 7 to 8 feet tall for a single car. For a two-car garage, the most common size is 16 feet wide by 7 feet tall. RV and oversized doors go up to 14 feet wide and 16 feet tall.
Picking the wrong size means your car barely fits, door replacement gets expensive, or your opener system doesn’t clear the ceiling. This guide gives you every measurement you need — by door type, vehicle type, and garage layout.
Garage Door Sizes Chart
Standard Garage Door Dimensions by Type
Custom sizes are available from most manufacturers for non-standard openings or extra-large vehicles.
Single Garage Door Sizes
A single-car garage door is designed for one vehicle. The most common width is 9 feet — wide enough for sedans and small SUVs to enter and exit without precision driving.
The 8-foot height option is growing in popularity, especially for homeowners storing items overhead or driving lifted trucks. It’s now widely stocked by major manufacturers including Clopay and Garolla.
Double Garage Door Sizes (Two-Car)
A double garage door covers two vehicles under one panel — or two side-by-side bays in some layouts.
The industry standard is 16 feet wide by 7 feet tall. But newer construction and custom homes are moving toward 18-foot widths for easier in-and-out access.
A 16 × 7 fits two vehicles but leaves little room to open car doors fully — especially if you’re parking two full-size trucks. An 18-foot width adds roughly 12 inches per side, which makes a noticeable difference in daily usability.
One thing most buyers overlook: Installing one large double door is almost always more cost-effective than two separate single doors — both in material cost and installation labor. It also eliminates the center support post, giving you a cleaner, more open look.
Triple Garage Door Sizes
A triple garage typically uses one of two configurations — three individual single doors with support posts between them, or one single door paired with one double door.
There is no universal standard size for a single panel covering all three bays. Most triple garage setups run 26 to 30 feet wide total, with each bay sized independently.
Custom triple garage doors are available from specialty manufacturers for large custom homes or commercial-adjacent builds.
RV and Oversized Garage Door Sizes
Standard residential doors won’t clear most RVs, large trucks, or commercial equipment. These vehicles need specialty dimensions.
Height is the most critical measurement for RV storage. Most Class A motorhomes stand between 12 and 13.5 feet tall. A minimum 14-foot door height is the safe standard to allow clearance without damage to roof-mounted AC units or antennas.
Garage Door Size by Vehicle Type
Measure Your Garage Opening
Measuring correctly before buying prevents costly mistakes and return trips from installers.
Opening Width — Measure the width of the rough opening at its widest point. This is the horizontal distance between the two side jambs.
Opening Height — Measure from the floor to the top of the opening. This determines the door panel height you need.
Headroom — Measure from the top of the opening to the ceiling. You need a minimum of 6 inches of headroom for a standard torsion spring system. Opener systems typically require 14 to 18 inches of total ceiling clearance above the door.
Side Room — Measure from the inside edge of each door jamb to the nearest wall or obstruction. Most standard hardware requires at least 3.75 inches on each side.
Backroom / Depth — Measure how deep your garage is from the opening to the back wall. You need enough depth for the door to retract fully when open — usually equal to the door height plus 18 inches.
More Post: Parking Lot Dimensions in Feet
(Questions)
What are the standard garage door sizes?
Standard single garage doors are 8 or 9 feet wide by 7 feet tall. Standard double garage doors are 16 feet wide by 7 feet tall. Heights can go up to 8 feet for taller vehicles. RV doors range from 10 to 14 feet wide and 12 to 16 feet tall.
How wide is a typical 2 car garage door?
A typical two-car garage door is 16 feet wide. Some newer homes and custom builds use 18-foot widths to allow more room for larger vehicles and easier door-opening clearance on both sides.
Do they make a 12 × 12 garage door?
Yes. 12 × 12 garage doors are available and are commonly used for vans, small RVs, converted campers, and boats on trailers.
What is the actual width of a 10 foot garage door?
A 10-foot garage door panel typically measures 119.5 to 119.75 inches — just under the full 10 feet — to allow for the frame, jamb, and weather seal within the rough opening.
How do I measure my garage opening for a new door?
Measure the width of the rough opening between the two side jambs, the height from floor to the top of the opening, and the headroom from the top of the opening to the ceiling. You need at least 6 inches of headroom and 3.75 inches of side room on each side for standard hardware installation.
What size garage door do I need for an SUV or pickup truck?
For most SUVs and crossovers, a 9 × 8 or 10 × 8 foot door works well. For full-size pickup trucks — especially lifted ones — a 10 × 8 single or 16 × 8 double door provides the necessary width and height clearance for mirrors and taller rooflines.
Hi, I’m Aria Blake, the author at FramesSize.com. I help make measurements simple with clear guides, easy explanations, and practical size comparisons. Explore our content to understand dimensions, frame sizes, lengths, and everyday measurements quickly and confidently.
