How to make sure you choose the right sized industrial door

September 7, 2018

When choosing a new door, you need to consider the space and function of the entrance to make sure you get the right sized door for the job.

With industrial entrances, it’s all about energy efficiency. As a general rule, you want the smallest possible door that’s still big enough to fulfil its purpose.

The bigger the door, the more air infiltration occurs and the more energy is lost. So, finding the balance between big enough but not too big is key when choosing your new industrial door.

What type of entrance?

Is your new industrial door being fitted in a new or an existing building? If it is a new building you have more flexibility – you can specify the door to the size you need. You will be more limited if fitting your door to an existing entrance.

Standard sizes

Depending on what your door will be used for, you need to choose a certain size of door. For truck doors, this is 4 meters wide and 4.5 meters high, while for loading bays the doors are normally smaller at 3 meters wide by 3 meters high.

Installation dimensions

Consider the dimensions of your entrance, not only in terms of height and width of the entrance itself but also additional height and width and depth required for the door to open and close.

For instance, if your overhead door opens horizontally under the ceiling of your building, you need to ensure there is enough depth. If it opens vertically above the entrance, you need extra height. It’s also important to consider if you have enough space around the door for the control unit.

Half opening

Back to energy efficiency – ‘half opening’ is an option that enables you to set the door motor to a specific height. This means large entrances can be programmed to open only halfway during certain tasks, so indoor temperature is kept more consistent and you never lose more energy than you need to.

Find more information about your different industrial door options at