A service door will need 15 inches of clearance at 6 feet high and 19 inches of clearance at 20 feet tall. Meanwhile, an insulated curtain will need 16 inches of headroom at 6 feet and 25 inches overhead at 20 feet high.
In most cases, approximately 400mm of head room is required to accomodate the rolled-up curtain. When the door is in the fully opened position, the opening height is normally reduced by approximately 70mm. A Roller Door can be installed where there is less than the headroom mentioned above, under certain circumstances.
Six-foot rollup doors need at least 16 inches of headroom, while a 20-foot stainless-steel door requires 25 inches of vertical headroom. Extreme® 300 Series: Doors in the Extreme® 300 Series can be 6 feet to 20 feet tall, requiring either 15 or 19 inches, depending on whether the door is 6 feet or 20 feet.
The minimum required clearance is 12”, it can be more, but not less than 12”. Accurately measure the head clearance from the header opening to the ceiling or any vertical incumbrances, like ferdowns or ledges. For doors up to 10' tall the minimum head clearance is 16”.
Typically, you will need 300mm (205mm for a compact door) of headroom for an insulated roller garage door and 450mm for a single skin steel shutter or door. If you do not have this much space available then let the Royal Industrial Doors team know and we'll see what we can do.
They can range in height from 6 feet to 20 feet, and will require different amounts of headroom depending on if the door is insulated. A service door will need 15 inches of clearance at 6 feet high and 19 inches of clearance at 20 feet tall.
Generally for single size roller doors the most common size is probably a door to fit an opening 7'6" (2286mm) wide and 7'0" (2134mm) high.
The standard height of a garage door is 7 feet (2.13 meters) for most residential homes. This size is common across many neighborhoods because it provides enough clearance for standard vehicles, including sedans, small SUVs, and pickups.
Step #1: Measure the Rough Opening
It should be one and a half inches longer than your new garage door's height. The header's space; this area should be nine inches wider than the door. The rough openings' width; it should be three inches longer than the door.
The standard height of a garage door is typically 7 feet (2.13 meters). This size works for most homes and is ideal for regular cars, SUVs, and small trucks. However, if you have larger vehicles, you may need to consider a taller garage door for easier access.
Space is the main difference between rolling and sectional doors. Rolling doors are more compact, which makes them easier to fit into a commercial or industrial workspace. Sectional doors, by contrast, require more planning to prevent them from interfering with existing equipment.
Sectional Doors
Sectional garage doors are a versatile solution for low-clearance applications. Designed with horizontal panels connected by hinges, they open vertically and curve along tracks to fit snugly under ceilings with minimal overhead space.
Here are the headroom requirements for each track type: Standard radius: On a 2-inch track, you need 12 inches of headroom for a 12-inch radius and 14 ¼ inches of headroom for a 15-inch radius. On a 3-inch track, you need 16 ½ inches of headroom.
What Ceiling Height Do You Need for a Garage Door? Residential garage ceiling heights differ. Most garage doors are available at standard heights of 7 and 8 feet, so ceilings should be 12 to 15 inches higher than your garage door.
A minimum clearance between the underside of the lintel/headroom and the ceiling. This varies with the height of the door. See chart below. Door Height (mm) Minimum Headroom* (mm) 1200 – 2200 430 2200 – 2600 480 2700 – 3300 510 *This clearance must extend for a minimum of 500mm horizontally back from the opening.
A rolling code (or sometimes called a hopping code) is used in keyless entry systems to prevent a simple form of replay attack, where an eavesdropper records the transmission and replays it at a later time to cause the receiver to 'unlock'. Such systems are typical in garage door openers and keyless car entry systems.
Roller sizes are fairly standard in the garage door industry. Most residential rollers are referred to as two-inch, but the roller diameter is actually closer to 1 3/4 inches. Commercial and industrial doors use two-inch and three-inch rollers. The wheels on three-inch rollers measure closer to 2 3/4 inches.
For the aluminium double skinned type roller door using a 77mm slat with a depth of 19mm (general size used) the headroom required is 300mm minimum in order to get almost the full height as ordered.
A standard roller door is produced to measure and fit openings up to 3m high x 5.5m wide and require 450mm of headroom. A standard sectional door is produced to measure and fit openings up to 3m high x 6m wide and require 250mm – 350mm of headroom.
A standard, 7.5-foot, manually operated commercial roll up door needs at least fifteen inches of headroom. If the door has an automatic opener, it will require at least eighteen inches. Roll up doors also require a small amount of horizontal headroom, though nowhere near as much as sectional or overhead doors.
The Garage Door Rough Opening
Next, your rough opening height should be 1.5 inches taller than the door. After this, you just need to bring in the opening size to the exact size of the garage door.
The standard height for most new garage doors is 7 feet (84 inches). This size is standard for residential garages and works well for most cars and small trucks. If you have larger vehicles, like an SUV or a van, you might need an 8-foot door or a custom size.
Small SUVs: Compact and mid-size SUVs are best served by an 8-foot tall garage door. This height accommodates the taller rooflines typical of these vehicles, ensuring that roof-mounted accessories like cargo boxes or ski racks clear the garage door frame.