Standard Size Garage Doors

Standard Size Garage Doors

​What exactly is a ‘standard sized’ garage door you may well ask?

We see garage door sizes referred to in metric and imperial dimensions and this can be confusing in itself. In the UK the majority of ordering sizes we refer to as ‘standard’ are in fact references to a close imperial rounded size. It is very important to realise that ordering sizes rarely represent the overall width and height of the relevant garage door when including the operating mechanism and the fixing sub frame required so although there may be a ‘standard size’ reference be sure to understand what it exactly is referring to.

Most roller, sectional and side hinged doors can be made to order and are fitted in a different way to up and over doors so have mainly adopted metric sizing for total accuracy. Other door types are usually made to measure as standard so metric is used all the time.

If you are replacing an existing 'up and over’ type garage door then it is very likely to be a standard size door already if it isn’t in an older garage block or on a pre cast concrete garage. If you are replacing the door and happy with the drive through dimensions then you probably just want to order the same size in a new door. Again just be aware the new door sub frame could be a different size to the old frame and this needs consideration especially if fitting in-between the garage opening.

Generally speaking, standard size up and over doors express their widths in increments of 6” starting at 6’6” wide up to 14’0’ wide with increments of 12” after 9’0” wide. 
The heights are generally only 6’4”, 6’6” and 7’0” with some exceptions from certain manufacturers.

Hormann also have a metric size range of up and over door worth investigating if you need an unusual or larger size at any time. These are in increments of 125mm in width and height.

The most popular ‘standard’ size up and over garage doors in the UK are still 7’x 6’6” and 7’ x 7’ for a single garage and 14’ x 7’ for a double garage even though these sizes are not sufficient for so many modern vehicles to have easy access through the drive through dimensions when the door is open. Try to accommodate larger sizes if possible.

Best Standard Size?

We would always recommend either 7’6” or 8’0” wide on a single garage and 16’0” wide on a double door if you are building a new garage but the 16’0” wide door cannot be a traditional up and over door as it is too wide.

Up and Over Doors

As mentioned above we recommend 7’6” or 8’0’ wide as a minimum for single garages and 14’0” on a double garage and this is the maximum width for most up and over doors anyway. Any wider and you need to look at sectional doors. We do offer a double skinned steel up and over door which is available up to around 6000mm wide if you have an extra large garage.
These sizes refer to the inside dimensions of the fixing sub frame so please allow for this.
Heights are generally 6’6” or 7’0”, again with a head section for the sub frame on top of this door ordering size dimension to consider.

Sectional Doors

For sectional garage doors there are many standard UK sizes offered which use the same principal of 6” increments in the width starting at 7’0” wide and usually only 2 heights of 6’6” and 7’0” although manufacturers like Carteck offer a far wider range of standard heights with their UK sized sectional doors. As most garage apertures are usually around 2200mm high then the 7’0” height (2134mm) will always need an infill of some sort so be aware of maximising the opening width and height whenever choosing a new door. Look for doors where the height can be far closer to the lintel height as a standard size.

Side Hinged Doors

Many of the side hinged garage doors available are also available in many standard sizes and again use imperial references, but again check carefully the overall sizes with the fixing sub frame included to make sure you get the exact dimensions. 7’ x 6’6” and 7’ x 7’ are still the main sizes out there with a 50 -70 mm outer sub frame added all round.

Roller Garage Doors

All our roller garage doors are made to measure with no premium, so go to exact millimetres for ordering these. We do have a small selection of standard roller door sizes in our steel single skin range and these are very competitive indeed and because they are fitted to the inside face then the sizing doesn’t have to be necessarily accurate.

Timber and Steel Sub Frames

The difference in exact sizes in-between the various fixing sub frames has come about because of steel sub frames where tighter tolerances can be used. For general referencing when a garage door is described as a 7’0” x 7’0’ then this refers to the internal dimensions of the fixing sub frame and is an exact reference if the sub frame is timber. In other words provide a timber sub frame with internal dimensions of 7’0” x 7’0” and all the factory tolerances will be correct for the door panel to work with this.
If the door has a steel sub frame then the internal dimensions will be a little smaller than the 7’0” x 7’0”, usually about 10mm smaller on the width. The steel frames are always factory fitted on single up and over garage doors so they are fitted as a complete unit.

For clarity we are referring only to ‘up and over’ and ‘side hinged’ garage doors where this sizing issue occurs. For all roller, sectional and round the corner doors the sub frame is not the same at all and cannot be a timber frame.

Below is a table of standard sizes for the Hormann up and over UK door range:
 

Below is a table of standard sizes for the Garador up and over UK door range:
 

 
*No fitting clearance allowed. If door is fitted between the brickwork a minimum of 10mm clearance over the width and 5mm over the height should be added to the overall frame size when selecting the door.

Below is a table of standard sizes for the Garador side hinged UK door range: